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Just recently adopted a stray dog, non-neutered male, supposedly 3 years old, supposedly border collie. Everyone in the neighbourhood says he never attacked anyone before, he used to be a smart, gentle dog. But since the adoption his behaviour has become assertive. He did attempt to attack a few other people on the street, those who attemted to cuddle him. But also we had three biting accidents so far, where his aggression was directed towards me, his owner.
The first was right when I put the collar and the leash on him for the first time. He started to pull, trying to break free. Frustrated that he couldn't, he growled at me, then attempted to bite me by the hand. He only managed to grab the glove, I let him have it, then shouted at him.
The second was entirely my fault, I suppose. He was chewing the bone the next day at home. I was in a hurry to take him somewhere, so I pushed the bone away from with my leg. He suddenly bit my leg and barked once (the first and only time he barked so far). I yelled at him, he sat and left the bone alone.
Then for a few days he didn't show any aggression towards me at all.
The third, the most recent one, happened today. We were on the walk, then he noticed a small doggie approaching. I couldn't see the owner, so I decided not to risk it, and pulled him away with a leash. He started growling (I'm not sure if he was growling at the dog or at me at this point), but complied. Then he stood on his hind legs and put his front legs on me, as he loves to do all the time. I started cuddling him, and he suddenly growled then bit my left forearm. I yelled at him, pulled the left hand away and pulled him away by the leash with my right hand, probably enough to strangle him a bit for a second, but I'm not sure. After he was back on the ground, he growled a bit, then calmed down. We continued to walk as normal then. After coming home, I noticed that he actually managed to bite through my coat and leave one small puncture on my skin. First time he had any success biting me.
I'm worried. What was that? Was that his desire to mate (provided the other dog was a female) or typical border collie attempt to challenge his master? Or is he simply not happy with me for some reason? What is the chance he will launch a full-scale attack (you know, bite to kill kind)? What can I do then? Or if he attacks me when I'm home without the protective coat and he's not on a leash so I can't pull him away? Can I trust him not to attack without provocation? And finally, can I inhibit his aggression?
The first was right when I put the collar and the leash on him for the first time. He started to pull, trying to break free. Frustrated that he couldn't, he growled at me, then attempted to bite me by the hand. He only managed to grab the glove, I let him have it, then shouted at him.
The second was entirely my fault, I suppose. He was chewing the bone the next day at home. I was in a hurry to take him somewhere, so I pushed the bone away from with my leg. He suddenly bit my leg and barked once (the first and only time he barked so far). I yelled at him, he sat and left the bone alone.
Then for a few days he didn't show any aggression towards me at all.
The third, the most recent one, happened today. We were on the walk, then he noticed a small doggie approaching. I couldn't see the owner, so I decided not to risk it, and pulled him away with a leash. He started growling (I'm not sure if he was growling at the dog or at me at this point), but complied. Then he stood on his hind legs and put his front legs on me, as he loves to do all the time. I started cuddling him, and he suddenly growled then bit my left forearm. I yelled at him, pulled the left hand away and pulled him away by the leash with my right hand, probably enough to strangle him a bit for a second, but I'm not sure. After he was back on the ground, he growled a bit, then calmed down. We continued to walk as normal then. After coming home, I noticed that he actually managed to bite through my coat and leave one small puncture on my skin. First time he had any success biting me.
I'm worried. What was that? Was that his desire to mate (provided the other dog was a female) or typical border collie attempt to challenge his master? Or is he simply not happy with me for some reason? What is the chance he will launch a full-scale attack (you know, bite to kill kind)? What can I do then? Or if he attacks me when I'm home without the protective coat and he's not on a leash so I can't pull him away? Can I trust him not to attack without provocation? And finally, can I inhibit his aggression?