It sounds wierd for me to use the word aggressive since I don't consider my dog an aggressive dog but I don't know how else to describe it. Here's what happened tonight at the dog park with my 4 year old Mini Schnauzer:
-On our way back to car, Simon was on leash and as we were leaving along the path, he encountered two dogs (separate encounters) that were walking with their owners on leash, towards the park. He loves other dogs so always wants to say hello. Both times he got "aggressive" with the other dog, growling and hopping when he didn't like the other dog's quick movements. With the second dog they even started barking and growling really nasty and started lunging for each other. We pulled the dogs away and the other owner said to me "its because they are both on a leash" to which I agreed. But I don't understand why?
A similar thing happened when were still inside the park. Simon was trying to pee and another dog was starting to be a bit of a pest and was standing over Simon, kinda intimidating him and not letting him have peace to pee. Simon kept walking away to get some space and the dog kept at his side, hovering over him (it was a banned breed and did not have a muzzle on -I live in Ontario-but that's another story). I didn't like the way things were going escpecially since the other owner was not calling his dog off. So I called Simon to me and put his leash on so that we could leave. Well, the other dog kept at Simon, pestering him and Simon then started growling and lunging back. He didn't do this when he was not on the leash.
He never gets aggressive with dogs when he is off leash or in the dog park. Why the aggression when he is on the leash?
He's also the type of dog to pull on the leash during walks (I'm still doing my research on how best to knock him of the habit) and goes nuts when he sees other dogs during walks. By nuts meaning he gets all vocal and tries to walk in the direction of the dog if its on the other side of the street or lunges towards it if its coming his way. Another bad habit we have to rid him of. I'm not sure if these last two bits help with the on leash aggression but I thought they might be clues.
I'd appreciate if anyone could shed some light on this "aggressive while on leash" business or point me in the right direction of resources to read.