I am no expert but my miniature poodle was also very agressive when he was a young pup. One night I made a noise that scared him and when I went to reassure him he bit me hard on my hand. I had blood all over the carpet.
I've had many dogs and I've never backed with them. They back away. Usually just standing in front of them with an assertive attitude is enough to make them understand.
The poodle wouldn't stop growling at me even with my calmest voice. I punched him on his jaw (rather hard too and not too unlike Cesar Milan's bite) and he never bit after that. I was not mad but had the attitude that this was not acceptable in my house.
I think it's a bit drastic and I never had to do that with any of my other dogs but I knew I had to nip it in the butt. I took obedience classes with him after that and even today I have to stay firm with him or I'm sure he would try to take over again. Some dogs are just like that.
__________________ Johanne  Daddy  and Chewie  |