piss taking is to be expected on here lol. I'm sorry I can't offer any advice, the world and his wife didn't have dogs when we had ours so he was always to watch. Tighten his collar. Might be aggression, fear, not knowing how to act around dogs?? We had ours from 6 weeks to 16 1/2 years. The bitch he was reared with was spot on and the dog that was reared next to him was spot on as well (and a lurcher as well was fine)??