I’m really not sure. Some people say he’s all bark, some people say he has actually harmed people. He’s certainly well known to the police, and I think he has been done a few times.
I’m pleasant to him but try to keep the interactions to a minimum. He’s always nice as pie to me because I’m one of the few people who will give him the time of day.
Anyway, my dog’s a lot bigger than his ;)