Thursday, February 26, 2026

Daycare or Boarding? A Chicago Dog Owner's Guide to Choosing the Right Care

 


You have a work trip next week. Your neighbor who usually helps is unavailable. Your dog stares at you with those trusting eyes, and you wonder: daycare or boarding? Which one fits this situation?

Chicago dog owners face this decision constantly, whether juggling hybrid work schedules, planning vacations, or keeping an energetic pup happy in a 700-square-foot apartment.

The good news: choosing between daycare and boarding does not have to be complicated. Once you understand what each service provides, the right choice becomes clear.

Key Takeaways

  • Daycare covers daytime hours. Best for work schedules, regular socialization, and preventing boredom behaviors.
  • Boarding includes overnight care. Best for travel, vacations, and situations requiring 24-hour supervision.
  • Many dogs benefit from both. Regular daycare dogs transition to boarding smoothly because the environment is already familiar.
  • Not all facilities accept all dogs. K9U welcomes dogs of all temperaments, including reactive dogs and those turned away elsewhere.
  • A free evaluation removes the guesswork. See how your dog responds before committing to any care plan.

The Core Difference Between Dog Daycare and Boarding

The distinction is straightforward: daycare covers daytime hours, boarding includes overnight stays. But the real question goes beyond time. It is about what your dog needs and what your life demands.

A Typical Day in Dog Daycare

Drop your dog off in the morning, pick them up after work. In between, your dog spends the day playing with other dogs, burning energy, and getting the socialization that keeps them mentally healthy.

At K9U, dog daycare includes supervised group play in both indoor and outdoor areas, rest periods so dogs do not become overstimulated, and groupings based on size, temperament, and play style. Your 80-pound Lab plays with dogs who match that energy. Your senior Beagle enjoys a calmer crowd.

The result? A tired, happy dog who comes home ready to relax instead of bouncing off your apartment walls.

What to Expect from Dog Boarding

Boarding provides everything daycare offers, plus overnight accommodations and round-the-clock supervision. Your dog sleeps in a comfortable space, receives scheduled meals, and gets care through the night.

Modern boarding has moved far beyond cold kennels and concrete floors. K9U's dog boarding includes spacious climate-controlled condos, optional group play during the day, medication administration if needed, and staff present overnight to ensure your dog stays safe and comfortable.

The ASPCA recommends touring any boarding facility before your dog's first stay. Look for clean spaces, engaged staff, and dogs who appear comfortable rather than stressed.


When Dog Daycare Makes the Most Sense

Daycare solves specific problems. If any of these sound familiar, regular daycare might be exactly what your dog needs.

Your Dog Gets Destructive When Left Alone

Chewed shoes. Scratched doors. Shredded pillows. These behaviors usually signal boredom or anxiety, not bad temperament. Dogs are social animals. Eight or more hours alone in an apartment goes against their nature.

Jonathan Polich, K9U's Lead Dog Trainer with over 10 years of experience, sees this pattern often: "Dogs come to us wound up and anxious, then go home calm and content. The combination of exercise, mental stimulation, and social interaction makes a real difference in how dogs behave at home."

You Work Long Hours or Have an Unpredictable Schedule

A quick morning walk and an evening walk often fall short for an active dog, especially if your commute adds hours to your day. Daycare fills that gap, giving your dog structured activity while you handle work demands.

K9U's dog shuttle service picks up dogs throughout Chicago neighborhoods including the West Loop, Lincoln Park, Wicker Park, and River North. Even on your busiest days, your dog still gets the care they need.

Not sure if daycare fits your schedule? Learn more about K9U's flexible daycare packages.

Your Dog Needs More Socialization

The American Kennel Club emphasizes that well-socialized dogs tend to be calmer, more confident, and better behaved in new situations. Regular interaction with other dogs builds these skills in ways that solo walks cannot replicate.

This matters especially for Chicago dogs. Urban environments expose dogs to constant stimulation: other dogs on sidewalks, crowded parks, unexpected noises. A dog comfortable with other dogs handles city life with less stress.

When Dog Boarding Makes the Most Sense

Boarding becomes essential when you cannot be home overnight. These situations call for professional overnight care.

You Are Traveling for Work or Vacation

Business trips, family visits, and vacations take you away from home. While friends or family sometimes help, they may not be equipped to handle medication schedules, dietary needs, or a dog who requires experienced handling.

Professional boarding ensures consistent care regardless of how long you are away. Your dog maintains their routine while you focus on your trip without worrying.

Plans Change at the Last Minute

Family emergencies happen. Work sends you somewhere unexpected. Your regular pet sitter cancels. Having a trusted boarding facility that already knows your dog provides peace of mind during stressful situations.

K9U offers emergency last-minute boarding for exactly these moments. When life throws a curveball, your dog still receives quality care.

Planning upcoming travel? Explore K9U's boarding options and reserve your dog's spot early.

Your Dog Has Special Medical or Behavioral Needs

Dogs on medication, senior dogs requiring extra attention, or dogs with specific dietary needs often do better in professional boarding than with well-meaning but inexperienced friends or family.

K9U's staff maintains detailed records and follows your instructions carefully. We accommodate senior dogs, dogs on medication, and dogs with specific requirements that other facilities might decline.

Why Chicago Dog Owners Face Unique Challenges

Living in Chicago shapes how you care for your dog. These local factors often influence the daycare versus boarding decision.

Apartment Living Limits Your Dog's Space

No backyard means no easy way for your dog to burn energy independently. An active dog stuck in a small apartment all day often develops behavioral problems from having nowhere to go and nothing to do.

Regular daycare provides the space and activity that apartment living cannot. K9U's facility includes over 20,000 square feet of indoor and outdoor play areas, giving your dog room to run that your apartment cannot offer.

Chicago Weather Creates Seasonal Challenges

Freezing winters with icy sidewalks. Summers with dangerous heat. Chicago's weather extremes make outdoor exercise inconsistent at best and unsafe at worst. Climate-controlled indoor play areas ensure your dog gets exercise regardless of conditions outside.

Hybrid Work Creates Unpredictable Routines

Some days you work from home. Other days you commute downtown. This inconsistency confuses dogs who thrive on routine. Flexible daycare packages let you adjust care week by week without committing to services you might not need.

Why Many Chicago Dogs Benefit from Both Daycare and Boarding

Dogs who attend regular daycare have much easier boarding experiences.

Pablo Maldonado, K9U Dog Trainer with over 10 years of international experience, explains: "Dogs who come to daycare regularly transition to boarding smoothly. They already have friends here and know what to expect. That familiarity reduces anxiety during overnight stays."

When your dog already knows the facility, the staff, and the routine, an overnight stay feels like a sleepover with friends rather than a stressful new environment.

Adding Training to Daycare or Boarding

K9U offers options that combine care with skill-building. Day Camp Academy adds individualized training sessions to regular daycare. Board and Train programs provide intensive training during extended stays.

For busy professionals who want their dog trained but struggle to fit classes into their schedule, these combined programs accomplish two goals at once.

Want your dog to learn while they play? Discover how Day Camp Academy combines daycare with personalized training.

How K9U Approaches Care Differently

Many Chicago facilities turn dogs away. Too reactive or anxious. Too old or too young. At K9 University Chicago, we take a different approach.

All Dogs Are Welcome Here

For over 30 years, K9U has welcomed dogs of all breeds, ages, temperaments, and behaviors. This includes dogs with special needs, reactive dogs, senior dogs, and dogs who have been turned away by other facilities.

We believe every dog deserves quality care. Our experienced trainers and handlers know how to work with dogs who need extra support, not just the easy ones.

Group Play Is Not for Every Dog

Some dogs prefer individual attention over group settings. K9U offers individual activities, one-on-one walks, and specialized care for reactive dogs who need a different approach. Our job is to find what works for your dog, not force them into a one-size-fits-all model.

Have a reactive or anxious dog? Learn about K9U's specialized care for dogs with behavioral challenges.

The Free Evaluation Removes the Guesswork

Every dog receives a free evaluation before starting daycare or boarding at K9U. This is not a pass-fail test. It is an opportunity for our team to understand your dog's personality, identify the best group placement, and determine any additional support your dog might benefit from.

You see how your dog responds to our facility before committing to anything. No pressure, no obligation.

Frequently Asked Questions About Dog Daycare and Boarding

What is the main difference between dog daycare and dog boarding?

The main difference is overnight care. Dog daycare provides supervision and activities during daytime hours, typically while you work. Dog boarding includes overnight accommodations and 24-hour care for travel, vacations, or extended time away from home. Many facilities, including K9U, offer both services so your dog can receive the care that matches your needs.

How do I know if my dog is a good fit for daycare?

Most dogs benefit from daycare socialization and exercise. K9U welcomes dogs of all temperaments, including those who may need extra support. Our free evaluation helps determine the best approach for your dog, whether that means group play, smaller groups, or individual activities. Dogs who have been turned away elsewhere often thrive with our personalized care.

Can my dog attend daycare or boarding if they have behavioral issues?

Yes. K9U specializes in working with dogs of all behavioral backgrounds, including reactive dogs and dogs with anxiety. Our trainers have decades of combined experience helping dogs build confidence and social skills. We create individualized plans that support each dog's needs rather than turning them away.

What vaccinations does my dog need for daycare or boarding?

Most facilities require proof of current rabies, distemper, and bordetella (kennel cough) vaccinations, negative fecal within a year. K9U follows these standard requirements to protect all dogs in our care. Bring your vaccination records to your evaluation appointment, and contact your veterinarian if you need to update any vaccines before your dog's first visit.

How long can my dog stay in boarding?

Dogs can stay in boarding for as long as you need, from a single overnight to several weeks. Most veterinary behaviorists recommend limiting extended boarding stays to about four weeks when possible, as dogs benefit from returning to their home routines. K9U accommodates both short-term emergency boarding and planned longer stays for vacations or relocations.

Does K9U offer transportation for daycare and boarding?

Yes. K9U operates a shuttle service that picks up and drops off dogs throughout Chicago, including neighborhoods like the Loop, West Loop, Lincoln Park, Wicker Park, River North, and surrounding areas. This service makes fitting daycare or boarding into your schedule easier, even during busy workdays.

Have more questions? Check out our full FAQ page for daycare and boarding details.

Find the Right Fit for Your Dog

Choosing between daycare and boarding does not have to be complicated. Daycare handles your workday. Boarding handles your travel. Many dogs benefit from both.

The best way to know what works for your dog is to see it firsthand. K9U's free evaluation lets you and your dog experience our facility with zero commitment. Our team will meet your dog, discuss your needs, and recommend the right approach for your situation.

For over 30 years, K9 University Chicago has helped Chicago dog owners find care solutions that work. Whether your dog needs regular socialization, overnight care during travel, or specialized support for behavioral challenges, we are here to help.

Schedule Your Free Evaluation Today

See how your dog responds to our facility. No pressure, no obligation.


THIS ARTICLE WAS PREVIOUSLY PUBLISHED AT: https://k9uchicago.com/blog/dog-daycare-vs-boarding-chicago-guide/

Tuesday, February 24, 2026

Food Aggression in Dogs: When Your Chicago Dog Guards Their Bowl (And What to Do About It)

 


A Lincoln Park dog owner noticed her dog started growling from across the kitchen while she prepared dinner. He wasn't near his food bowl. He was just watching her cook. That low rumble made her freeze. Something had shifted in her sweet dog's behavior, and the problem was getting worse.

Does your dog stiffen when you walk past their bowl? Growl when family members enter the kitchen during mealtime? Snap when you reach for a dropped treat?

Food aggression (also called resource guarding) is one of the most serious behavioral problems Chicago dog owners face. It puts families at risk, creates stress in multi-dog households, and can turn from mild warning signals to biting if you don’t address it.

The good news? Food aggression can improve with proper professional training. This behavior comes from fear and anxiety, not dominance. Dogs who once lunged at family members can learn to eat calmly while people move freely around the kitchen.

KEY TAKEAWAYS:

  • Food aggression is fear-based resource guarding, not dominance behavior
  • Warning signs range from mild (stiff body, side-eye) to severe (biting)
  • Punishing growling or taking food away makes the problem worse
  • DIY methods work for mild cases; professional help needed for moderate to severe
  • Training takes 2-4 weeks for board and train, longer for severe cases
  • Children need immediate safety rules and professional help

Whether your dog shows early warning signs or has already bitten, understanding food aggression is the first step toward a safer home.

What Is Food Aggression (Resource Guarding)?

Food aggression is a type of resource guarding where dogs show possessive behavior over food, treats, or food-related spaces. According to the American Kennel Club, this behavior exists on a range from mild body language changes to serious aggression.

This behavior comes from fear, not a dominance issue. Modern animal behavior science has moved away from outdated dominance theories. Dogs guard resources because they feel anxious or threatened, not because they're trying to control their owners.

This is different from a hungry dog getting excited at mealtime. Food aggression involves threatening behavior when someone or another animal approaches during eating or near food locations.

Resource guarding is a natural survival instinct in dogs. In the wild, protecting food sources helped dogs survive. But in a home environment, this instinct can become a serious problem, especially in families with children or multiple pets.

The behavior can extend beyond the food bowl itself. Some dogs guard empty bowls, kitchen areas where food is prepared, or even their owners after being fed.

Signs Your Dog Growls When Eating (Red Flags)

Understanding the warning signs helps you address the problem before it gets worse.

Mild Signs

Watch for these early warning signals:

  • Eating faster when someone walks nearby
  • Body stiffening or freezing over the bowl
  • Hard stare when you approach the bowl
  • Side-eye or whale eye (showing the whites of their eyes)
  • Low growling or lip curling when approached
  • Hovering over food protectively

Moderate Signs

These behaviors mean the problem is getting worse:

  • Lunging or snapping without making contact
  • Guarding empty food bowls or feeding areas
  • Resource guarding that extends to toys, beds, or favorite spots
  • Blocking access to food areas with their body

Severe Signs

These behaviors need immediate professional help:

  • Biting or attempted biting over food
  • Guarding you from other family members or pets
  • Unpredictable aggression that's getting worse
  • Resource guarding in multiple situations beyond food

Why Do Dogs Develop Food Aggression?

Understanding the root cause helps frame the solution.

Medical Issues Can Trigger Guarding Behavior

If your dog suddenly develops food aggression or the behavior gets worse quickly, schedule a vet checkup before starting training.

Pain can cause dogs to guard resources they wouldn't normally protect. Dental pain makes eating uncomfortable, causing dogs to become defensive around their bowls. Stomach issues, arthritis, or other conditions that cause discomfort during eating can trigger guarding behavior.

If food aggression appears suddenly in an adult dog who never showed these behaviors before, medical issues should be ruled out first.

Common Behavioral Causes

Many rescue dogs or former strays develop food aggression from genuine scarcity experiences. When dogs competed for limited food in shelters, breeding facilities, or on the streets, guarding behavior kept them fed.

Competition in multi-dog households can trigger food aggression even in dogs who never experienced scarcity. If one dog eats faster or steals food from another, the slower dog may develop guarding behavior to protect their meals.

Inconsistent feeding schedules create a scarcity mindset. When dogs don't know when their next meal is coming, they guard more intensely.

Early socialization matters. Puppies who weren't exposed to people approaching during meals may develop guarding behavior because they never learned that humans near food bowls is normal and safe.

Previous negative experiences play a role too. Dogs who had food taken away as punishment or who experienced rough handling during meals often develop food aggression as a defensive response.

Sometimes food aggression develops in well-cared-for dogs without an obvious trigger. Genetics, breed tendencies, and individual temperament all factor into this behavior.

What NOT to Do (Common Mistakes That Make It Worse)

Chicago dog owners often try methods that make food aggression worse rather than better.

Taking the food bowl away to "show dominance" makes aggression worse. This outdated approach tells your dog that people near food really are a threat. The behavior gets stronger rather than better.

Punishing the growling removes your dog's warning signal. A dog who gets punished for growling may skip that warning next time and bite without notice. The growl is communication. You want to keep that communication line open while addressing the underlying issue.

Cornering your dog while they're eating creates a trapped, defensive animal. Always give your dog an escape route, even during training.

Letting children "test" the dog or practice approaching during meals puts kids at serious risk. Food aggression needs professional help before any training work happens, especially in homes with children.

Free-feeding creates constant guarding behavior. When food is always available, dogs who resource guard stay in a protective state all day.

Ignoring mild signs rarely works. Food aggression typically gets worse without help. That side-eye today can become a snap tomorrow and a bite next month.

Keeping Children Safe Around Food Aggressive Dogs

If you have children in your home, safety rules are non-negotiable until the behavior is resolved.

Immediate safety rules:

  • No child approaches the dog during meals (strictly enforced)
  • No children pick up dropped food near the dog
  • Adult-only feeding routine (no exceptions)
  • Physical barriers during feeding times (baby gate, crate, or closed door)
  • Children learn to recognize warning signs and report them to adults
  • No children alone in rooms where the dog is eating

These rules stay in place throughout training and sometimes permanently. Your child's safety takes priority over every other consideration.

When DIY Training Isn't Enough (Signs You Need Professional Help)

Food aggression needs professional help in several situations.

You need a professional trainer if your dog has bitten or attempted to bite over food or resources. Even one bite means the behavior has crossed into dangerous territory.

Families with children should get professional help at the first sign of food aggression. Kids move unpredictably and may not recognize warning signals. The risk is too high to handle without expert guidance.

Multiple dogs in the household with food competition need a professional to look at what's happening. Managing multiple dogs with resource guarding takes expertise in group dynamics and individual behavior work.

If the behavior is getting worse despite your efforts, it's time to call in help. Aggression that gets worse over time won't resolve on its own.

Feeling scared or unsafe around your own dog during meal times means the situation has become unmanageable. Your home should feel safe, and professional training can restore that security.

Basic management and beginner-level training can work for mild cases. If you’ve worked on it consistently for 2–3 weeks with no change in how intense or frequent the guarding is, the problem likely needs professional help.

Why Professional Training Works Better

Professional training works better for food aggression because trainers provide a controlled setup with safety controls. They can figure out how bad the aggression is and identify root causes that aren't obvious to owners.

Step-by-step training plans work better than general tips found online. Professional trainers use specific, progressive steps tailored to your dog's aggression level.

Training with multiple handlers helps dogs learn the new behavior applies to everyone. When dogs learn that various people approaching during meals is safe, not just family members, the behavior change sticks.

Safety steps for severe cases need expertise most owners don't have. Trainers know how to work with highly reactive dogs without putting themselves or the dog at risk.

How K9U Chicago Solves Food Aggression (Training Options)

K9U Chicago offers two proven approaches for addressing food aggression, depending on how bad your dog's behavior is and your family's needs.

Board and Train Programs for Serious Cases

For moderate to severe food aggression, board and train programs provide intensive, daily training sessions rather than weekly classes where behavior can backslide between sessions.

Board and train creates group environments where dogs learn to eat calmly with other dogs nearby. This controlled exposure helps dogs understand that other animals near food don't threaten their resources.

Trainer expertise in reading dog body language allows for real-time adjustments. What works for one dog may not work for another. K9U trainers change approaches based on each dog's responses and progress.

The training transfers back to you through teaching sessions where trainers show you the techniques and coach you through practice. You get a written home plan with daily steps to maintain progress.

Programs typically run two to four weeks depending on how bad the problem is. Your dog stays at K9U's facility and gets multiple training sessions daily in a structured environment designed for behavioral work.

Private Lessons for Milder Cases

For dogs showing early warning signs or mild food aggression, private one-on-one training sessions let you work directly with a trainer while your dog stays home.

Private lessons work well when:

  • Your dog shows mild guarding behavior (stiffening, side-eye, eating faster)
  • You caught the problem early before biting occurred
  • Your schedule allows for consistent at-home training sessions
  • You prefer to be hands-on in the training process

Trainers come to your home or work with you at K9U's facility. They look at your dog's specific triggers, show you techniques, and coach you through the process. You use the methods between sessions with trainer support.

Both approaches include post-training support to address any setbacks or questions after the initial training period.

What Success Looks Like

Training for food aggression is a process, not an overnight fix. Here's what realistic progress looks like:

Early progress (1-2 weeks):

  • Growling happens less often
  • Dog can pause eating and look to you when cued
  • Tolerates movement at a distance (6-8 feet from bowl)
  • Body language shows less tension during meals

Mid-stage progress (3-6 weeks):

  • You can move closer to bowl without triggering guarding
  • Dog accepts treats tossed near bowl while eating
  • Can eat calmly with people in same room
  • Guarding behaviors happen less and are less intense

Long-term success:

  • Dog eats calmly while people move normally around kitchen
  • No guarding behaviors when approached at bowl
  • Stays calm even with unexpected interruptions
  • Shows good behavior with multiple people and settings

"Done" means combining training maintenance with ongoing management. Most dogs need some level of management throughout their lives (consistent feeding routines, avoiding high-risk situations). The goal is a dog who is safe and comfortable, not perfect.

Keeping Everyone Safe While You Get Help

While you're waiting for professional training or using what you learned, these steps keep everyone safe.

For multi-dog homes, create separate feeding stations in different rooms. Physical distance prevents competition and reduces guarding triggers.

Feed your dog in a crate or closed room. This doesn't fix the problem but prevents incidents while you work on training.

Use a baby gate to create a feeding zone your dog can access but children and other pets cannot. Baby gates work well for families who don't have crates or closed rooms available.

Crate or separate your dog before food prep starts. Some dogs guard kitchen areas during cooking. Preventing access stops the trigger.

Make a strict household rule that no one approaches the dog during meals. Make sure everyone in your home, especially children, understands and follows this rule consistently.

Puzzle feeders or slow-feed bowls can help. These reduce the gulping and frantic eating that often comes with food guarding behavior.

Keep a consistent feeding schedule and location. Predictability reduces anxiety around food and can decrease guarding behavior over time.

Common Questions About Food Aggression in Dogs

What is food aggression in dogs?

Food aggression is a type of resource guarding where dogs display possessive or threatening behavior around food. This can include growling, snapping, or biting when someone approaches during meals or near food-related areas. The behavior ranges from mild body stiffening to severe biting.

Why does my dog growl when eating?

Dogs growl when eating as a warning signal to communicate "stay away from my food." This behavior often comes from survival instincts, past experiences with food scarcity, competition with other animals, or lack of early socialization around meals. Growling is your dog's way of expressing discomfort or perceived threat to their resources.

Can food aggression in dogs be cured?

Yes, food aggression can be successfully addressed through professional training. With consistent behavior modification, most dogs learn that people or other animals approaching during meals don't threaten their food supply. The timeline varies depending on how bad it is, but many dogs show significant improvement within weeks to months of structured training.

Is food aggression a sign of dominance?

No, modern animal behavior science has moved away from dominance-based explanations. Food aggression is a resource guarding behavior driven by fear, anxiety, or survival instincts rather than a desire to dominate. Understanding it as a fear-based behavior rather than dominance leads to more effective, humane training approaches.

When should I get professional help for food aggression?

Get professional help immediately if your dog has bitten or attempted to bite, if you have children in the home, if multiple dogs are competing over food, if the behavior is getting worse, or if DIY training methods haven't worked after 2-3 weeks. Professional trainers can safely look at how bad it is and use appropriate methods.

How long does it take to fix food aggression?

The timeline depends on how bad the aggression is and how consistent the training is. Mild cases may show improvement within a few weeks, while moderate to severe cases often need several months of professional training and ongoing management. Board and train programs typically run two to four weeks, with continued work at home.

Is food aggression dangerous for children?

Yes, food aggression poses serious safety risks in homes with children. Kids move unpredictably and may not recognize warning signals from dogs. Even mild food aggression needs professional help when children are present. Management should keep children away from dogs during feeding times until the behavior is fully addressed.

Can food aggression get worse over time?

Yes, food aggression typically gets worse without help. What starts as mild body stiffening can progress to growling, then snapping, and eventually biting. Early help prevents this and makes training more successful. Ignoring early warning signs allows the behavior to become more stuck and severe.

Get Professional Help for Food Aggression

Food aggression won't resolve on its own. Every day you wait, the behavior becomes more stuck and harder to fix.

K9U Chicago has worked with thousands of Chicago families over 30 years to solve food aggression and other behavioral problems through proven training methods.

Food aggression needs expert eyes, not trial and error. Professional trainers can figure out how bad it is and identify root causes in ways owners can't.

Contact K9U for a behavioral evaluation where trainers look at your dog's specific issues and recommend the right training approach. The earlier you get help, the faster and more complete the resolution.

K9U Chicago's trainers, including Lead Dog Trainer Jonathan Polich, Pablo Maldonado and Joshua Johnson, specialize in working with dogs who have behavioral challenges. The facility offers specialized programs for reactive dogs and aggressive behaviors.

For dogs who need basic skills alongside aggression work, K9U also provides basic obedience training that builds the commands and structure necessary for long-term success.

Your dog isn't a bad dog. They're a scared dog who needs the right help.

THIS ARTICLE WAS PREVIOUSLY PUBLISHED AT:

 https://k9uchicago.com/blog/food-aggression-dogs-chicago-training/