
08/10/2025
CAR CHASING MYTH BUSTING!
I’ve had a lot of people forwarding me a post claiming that car chasing is always fear-based, suggesting that dogs are trying to make the car go away because they are afraid of it rather than showing predatory behaviour aka chasing something because it’s fun.
Anytime your dog is chasing something, we can’t look at that single action and know what they are feeling, and we certainly can't paint an entire species with one brush. Whether they are chasing cars, bikes, runners, birds, or sheep, we have to look deeper. We have to look at the underlying reason the behaviour is happening.
The behaviour is what the dog is DOING.
The emotion is WHY they are doing it.
When fear or aggression is involved, the dog is trying to make the target retreat: “I’m going to chase you and scare you so you go away.”
When predation is involved, they are trying to get close. Very close: “I’m going to chase you to eat you.”
So, in the context of car chasing, let’s zoom out.
In Urban Sheepdog, I talk about “releasers.” ( you can read more about all of this dog nerd stuff here: https://amzn.to/3Kx3yK0
Releasers are triggers that cause ingrained, automatic behaviours to switch on. For example, if one dog howls, deep in your dog’s DNA, their own howl software is activated, and your dog joins in. In humans, we yawn if another human does. The yawn is the releaser, and the following behaviour is the ingrained, automatic behaviour.
Dogs all have some bits and pieces of the predation sequence deep inside them. This sequence is: orient → eye → stalk → chase → grab-bite → kill-bite → dissect → consume.
Their ancestors had this full sequence. Most dogs don’t have the full, intact process from start to finish anymore. For some, it’s fading because we feed them every day. They aren’t under the same selection pressure to hunt and survive, allowing survival instincts to change. Other dogs have had the sequence changed on purpose through selective breeding because we’ve bred for and against specific parts of it. For example, herding breeds have had certain parts exaggerated: stalk and eye in Border Collies, or the "point" in a German Pointer.
The sequence always has a "releaser". It might be a cat streaking across your yard. It might be a ball flying through the air, acting enough like prey to kick-start your dog’s chase. It could even be a squeaky toy that you think your dog loves like a sweet teddy bear when, really, they love the squeak because it is designed to resemble dying prey!
Sometimes, things that aren’t at all like prey still ignite the behaviour.
Cars are a perfect example. They move quickly, appear suddenly, and change direction. Sometimes there are several moving together. Sometimes they are still and then burst into motion. They don’t look like prey to us, but to your dog, they can seem prey-ish. Or, in herders, cattle-ish.
Your dog might say "close enough!"
Could a dog chase a car out of fear? Absolutely. Noise sensitivity, lack of early socialization, or traumatic experiences can all create defensive responses to fast-moving vehicles.
Chasing something is also inherently rewarding. This means the dog doesn’t even have to catch something to be reinforced. The very act of doing it feels good. So, if your dog does it once, they are very likely to do it again and again. It’s also my theory that some lines of Border Collies are especially prone to car chasing... but that’s another thought for another time!
At the end of the day, as guardians, we need to be very cautious any time a dog is interested in chasing cars. It’s a losing game, and the risks aren’t worth taking any chances.
So no, car chasing is not always fear. Sure, sometimes it is.
But very often, it is predation, the oldest instinct dogs have.