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12 Common Dog Myths Debunked by Experts

By Gladiator K-NINE

October 14, 2025

Debunking 12 Common Dog Myths

Ever wondered why your dog eats grass or if they really feel guilty after chewing your favorite shoes? As dog owners, we often rely on long-standing beliefs to understand our furry friends. But many of these “facts” are actually myths that can lead to confusion and even harm our pets’ well-being.

Separating fact from fiction is crucial for providing the best care for your dog. Understanding their true behaviors and needs helps build a stronger, healthier relationship. Sometimes, behaviors we misinterpret, like that “guilty” look, are actually signs of anxiety or stress. 

For these moments, innovative solutions like the Gladiator K-Nine collar can offer much-needed support, helping to soothe your dog’s stress without medication. Let’s explore some of the most common dog myths and uncover the truth behind them.

12 Common Dog Myths Debunked

Here are some of the most widespread misconceptions about dogs, finally set straight.

Myth 1: Dogs only see in black and white.

While dogs don’t see the full spectrum of colors that humans do, their world isn’t entirely black and white. Their vision is similar to a person with red-green color blindness. They can distinguish between shades of blue and yellow but perceive greens and reds as shades of gray. So, that bright red toy might not stand out as much as a yellow one on a green lawn.

Myth 2: A “guilty look” means my dog knows they did something wrong.

When you come home to a chewed-up pillow and find your dog with lowered ears and a sad expression, it’s easy to assume they feel guilty. However, what you’re seeing is appeasement behavior. Your dog is reacting to your disappointed or angry tone and body language, not reflecting on their past actions. They’re trying to diffuse the tension. Punishing them long after the fact will only create anxiety around your return home.

While they may understand that one specific thing they did was wrong if they’re caught immediately, they’re not going to understand or feel guilty for something that happened hours before.

Myth 3: Dogs eat grass to make themselves sick.

While some dogs do vomit after eating grass, it’s not usually their primary goal. Many experts believe dogs simply enjoy the taste and texture of fresh grass, especially in the spring. It can also be a natural way to add a bit of fiber to their diet. 

As long as the grass is free from pesticides and your dog is protected against lungworm, this behavior is generally harmless. If you used pesticides and/or you haven’t been getting your dog monthly treatments for lungworm, do not let them eat grass.

Myth 4: Dogs age seven years for every one human year.

This is a vast oversimplification. A dog’s aging process is much more rapid in their early years and slows down as they get older. Size and breed also play a significant role. A small breed might be considered senior at ten years old, while a giant breed could reach that stage at just five or six. 

It’s more helpful to understand your dog’s life stage — puppy, adolescent, adult, or senior — to provide appropriate care.

Myth 5: You can’t teach an old dog new tricks.

It’s never too late to train your dog! While puppies might learn more quickly, adult and senior dogs are perfectly capable of learning new commands and behaviors. The key is finding the right motivation. Using high-value treats, positive reinforcement, and keeping training sessions short and fun will help your older dog succeed.

Myth 6: A female dog is happier if she has one litter of puppies.

This is a classic old wives’ tale. Dogs do not experience a “maternal instinct” or feel “empty” if they don’t have puppies. In fact, spaying your female dog has significant health benefits, including preventing potentially fatal uterine infections (pyometra) and reducing the risk of certain cancers. There is no proven health or behavioral benefit to letting a dog have a litter before she is spayed.

Myth 7: It’s okay to leave a dog in a car on a warm day if the windows are cracked.

It is never safe to leave a dog in a car on a warm day. A car’s interior can heat up to dangerous levels within minutes, even with the windows slightly open. Dogs can’t sweat like humans and are highly susceptible to heatstroke, which can be fatal. Don’t take the risk.

Myth 8: Rescue dogs aren’t suitable for families with young children.

While some rescue dogs may have behavioral issues that make them unsuitable for a home with kids, many are perfectly fine and may have even lived successfully with children in a previous home. 

The most common reason dogs end up in shelters is due to changes in their owners’ circumstances, not because of the dog’s behavior. An adult rescue dog’s personality is already formed, so you have a better idea of the pet you’re bringing home.

Myth 9: A little bit of chocolate is harmless for a dog.

Chocolate is toxic to dogs because it contains theobromine. The level of toxicity depends on the type of chocolate, the amount consumed, and the size of the dog. Dark chocolate and baking chocolate are the most dangerous. Even small amounts can cause vomiting, diarrhea, seizures, and in severe cases, death. It’s best to keep all chocolate away from your furry friend.

Myth 10: You need to be the “pack leader” to control your dog.

The “alpha dog” theory is based on outdated studies of captive wolves and has since been debunked. Dogs do not view their human families as a wolf pack that they need to dominate. Dominance-based training methods can create fear and anxiety, damaging your bond. Positive reinforcement training, which rewards good behavior, is a much more effective and humane way to teach your dog.

Myth 11: You can catch a cold from your dog.

The viruses that cause the common cold in humans are different from those that affect dogs. While some diseases can pass between pets and people (zoonotic diseases), it’s highly unlikely you’ll catch a cough or sniffles from your canine companion. Good hygiene, like washing your hands after handling your dog, is always a good practice.

Myth 12: You can give your dog human painkillers like ibuprofen.

Never give your dog human medication unless specifically instructed by your vet. Many human drugs, including common painkillers like ibuprofen and acetaminophen, are highly toxic to dogs. They can cause severe issues like stomach ulcers, kidney failure, and liver failure. If your dog is in pain, consult your veterinarian for safe and appropriate treatment.

Reduce Anxiety with the Gladiator K-Nine Collar

Understanding your dog is the first step, but what if their behaviors stem from anxiety? Many common issues, from destructive chewing to excessive barking, can be linked to stress. The Gladiator K-Nine collar is designed to help.

This innovative, stress-reducing collar uses a patented ceramic technology that has therapeutic effects, helping to calm your dog naturally. Think of it as a gentle, constant hug that reassures your dog during stressful situations, like car rides or when they’re home alone. Benefits of the Gladiator K-Nine collar include:

  • Reduces stress and anxiety: Helps manage behaviors linked to fear and nervousness.
  • Safe for all dogs: Suitable for any size, breed, or age.
  • No power needed: The ceramic technology works continuously without batteries or charging.
  • Waterproof and durable: Designed for everyday use in any weather.
  • No side effects: A non-invasive, drug-free solution to improve your dog’s quality of life.

A Better Bond Through Understanding

By debunking common dog myths, we can move beyond outdated assumptions and build a stronger, more trusting relationship with our pets. Recognizing the true meaning behind their actions allows us to respond with empathy and effective solutions.

If you notice signs of stress or anxiety in your dog, it’s worth exploring gentle, supportive tools. Learn more about how the Gladiator K-Nine collar can provide the comfort and security your best fur friend deserves by contacting us today.

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