14/07/2025
Not Aggressive, Just Scared?
I bumped into a woman walking her dog this week. The moment her dog spotted mine, they stiffened, then began lunging on the lead showing teeth. The owner quickly called out, “It’s okay! My dog trainer says she’s not aggressive, she’s just scared!”
Now, this isn’t the first time I’ve heard that particular line, so I thought it might be worth unpacking it a little.
To understand what’s really going on here, we need to separate behaviour from emotional state. In this case, the behaviour is aggression; the emotional state is fear. These are not the same thing, even if they’re often related.
Yes, fear can absolutely be a driving force behind aggressive behaviour. A dog that’s frightened may lunge, growl or snap to try to push a perceived threat away. And unfortunately, this behaviour is often reinforced—if the threat retreats (e.g. another dog is pulled away), the dog feels safer, and the aggressive response is more likely to happen again next time.
But here’s the key point: just because aggression is fear-based doesn’t mean we should dismiss it. Saying “she’s not aggressive, just scared” doesn’t make the behaviour any less problematic. It’s still something that needs addressing—for two important reasons.
First, the dog is clearly experiencing an uncomfortable emotional state. That fear shouldn’t be ignored.
Second, the behaviour itself can cause distress to others—both people and dogs. And in some cases, it could provoke a dangerous response if another dog, or their owner takes exception to the lunging and reacts aggressively in return.
If your trainer has told you that your dog’s aggression is rooted in fear but hasn’t offered guidance on how to help, it’s time to take action. Speak to your vet to rule out any medical issues, and ask for a referral to a properly qualified clinical animal behaviourist.
It’s also worth noting that working with a vet and a clinical animal behaviourist might uncover other underlying reasons for the aggression. There are several potential motivating factors, and often require different approaches.
Let’s stop excusing the behaviour and start helping the dog.