When Your Dog’s Behavior Suddenly Changes

Michael Baugh CDBC

Our dogs’ behavior is always changing. They find new interests and interact with the environment in ways we’ve never seen before. That is a sign of a behaviorally healthy dog.

New phobias or aggressive dog behavior are not so healthy. Those kinds of behavior changes can crop up throughout our dogs’ lives for various reasons.

Puppyhood and Adolescence (the first two years)

These are developmental changes. New fears and first-time aggressive behavior are fairly common. Common does not mean they are acceptable or that we should ignore them. On the contrary. We need to intervene and help our dogs at the first sign of fear or aggression. Causes include socialization deficits (our dog’s lack of positive experiences), emotional trauma (including before birth), and genetic predisposition (not always permanent). Early positive reinforcement training can turn this kind of unwanted behavior around when our dog is still young. It’s also a great way to prevent fear and aggression problems.

Adulthood

If our dog begins behaving fearfully or aggressively as an adult, we still need to take action. This is especially true for dogs who have otherwise been joyful and pro-social for the first several years of their life. A sudden change in behavior in our adult dog is a red flag. Our first step is to take the dog to the vet to rule out pain (that’s a big one) or other medical causation. Be thorough. Ask lots of questions. Make note of environmental changes, like a move to a new home, a new partner or roommate, or a baby growing into toddlerhood. Those can all affect our dogs’ behavior. We still recommend positive reinforcement training for adult dogs.

Senior Dogs

When a senior dog’s behavior changes, we look for the same causes we’d consider in a younger adult dog. In addition, we can ask our vet to begin regular senior blood work and test for any cognitive decline. Yes, old dogs benefit from positive reinforcement behavior change training. Age does not impede this. But, a late-in-life development of fear and aggression almost always involves vet care as well.

It’s Not All Bad

Behavior is always changing, from birth all the way until our dogs’ last days. Most of the changes we see are benign, delightful, even cute. Many dogs learn to play in new ways, make new friends (human and dog), discover new toys, or learn to enjoy new favorite sleeping spots (mine loves to sunbathe). Cherish these moments. Remember them. They will become part of the stories you tell long after your sweet dog has passed.

I’ll help with the unwanted behavior. The good behavior changes: those are yours to keep in the most treasured parts of your memory.

Michael Baugh teaches dog training in Sedona AZ and Houston TX. He specializes in fear and aggressive dog training .

What Fish Tanks Taught me About Dog Training

Michael Baugh CDBC

When I was a kid, I had fish tanks, two in my room and three more in other rooms in the house. Freshwater tropical fish. My dad taught me how to care for them, even to breed them. Sometimes a fish would get sick; it was usually bacteria or a parasite. My dad’s lesson: we treat the water. It’s not the fish; the tank is sick.

I think about my dad’s wisdom a lot when I’m working with dogs. Behavior problems can be unique to an individual dog. Some relate to prior trauma we know nothing about. Pain or illness causes some problems, certainly. A few issues are neurological. But mostly the tank is sick.

Our dogs’ behavior is a constant conversation with their environment, shaped by prompts and feedback from the world around them. And yes, that includes the people in their lives. Our dogs live in community with us, with our visitors, with the other animals in our home and on our property. We may not have caused our dogs’ behavior problems. Still, we are key players in the game. Changes we make in our own behavior, and changes we make in our dogs’ environment matter a lot. Even small changes in our dogs’ world can have a big impact.

You see? It’s not all the dog. Everything connects and interacts. Our dog barks at strangers; but not if we introduce the stranger outside. A dog might snap at children; but we can teach him to remain calm watching kids from his bed. Some dogs lunge at other dogs on walks; but not when we give them a little more breathing room when they pass. The cues remain the same. Their meaning for our dogs is what changes. The feedback from their world changes and, sure enough, our dogs’ behavior changes.

Treat the tank, not just the fish.

We can do this for ourselves too. When I feel anxious or sad, I can practice being calm and watch the world from a distance. Set the phone down. Slow the scroll. Let the doom fade. Meet outside and feel the sun. Give each other a little breathing room. We can set things differently, interact with each other a little differently. Even a slight change can have a big impact.

My dad and I would talk late into the evening while we watched the fish. He still lives in that memory, rent-free. There is a natural cycle to life, he taught me. It’s rough sometimes. The tank gets sick, sure enough. We do our best. Things get better. It’s all connected. And, you know what that means? None of us is ever really alone.

Michael Baugh CDBC teaches dog training in Houston TX. He specializes in aggressive dog training. Jack Baugh was a world-class salesman and, hobby fish breeder and wise old dude. He died in 2014 at the age of 89.

How to Prepare For Your Dog Training Session

Michael Baugh CDBC

Dog training on-the-fly can look too much like testing and not enough like teaching. Sure, there are some circumstances where a properly reinforced single-event training moment is acceptable, even preferred (example: randomly calling your dog to you for a click and treat). Most of the time, though, I recommend well-planned brief sessions for training with your dog, seven to ten minutes in duration, one to three times per day.

What Should You do Before Starting a Dog Training Session?

✅ Make sure you have all the props you’ll need nearby. (for example, your dog’s mat, or target stick)

✅ Have treats and your clicker if you are using one. (Carry your treat bag around for an hour before a session so your dog doesn’t automatically flip into “training mode.”)

✅ Create a low-stress, minimally distracting place to train.

✅ Imagine what a successful session will look like. Visualization works.

✅ Take a breath. Relax. I like to do a brief meditation before training. It helps me focus and pay attention.

Begin.

When we set ourselves and our dogs up for success, training is fun. It’s not always easy, but the challenges are easier to solve. Enjoy this moment. Keep in mind how your session connects to your larger dog training goals without getting lost in the future, or getting frustrated because you’re not there yet. Teach in the here and now. The days with your dog are passing, and this is all part of the joy you share with each other.

Michael Baugh teaches dog training in Houston TX. He specializes in aggressive dog training.