Please can someone help? I think 'm going to lose my mind! I've had Illy Picca Boo from 8 weeks old. He was a hand chewer when he arrived, and although I tried to stop him, it didn't hurt or draw blood. However he is now 12 weeks and quite large for his age. I have tried yelping, pinching his lip, shouting, treats when he doesn't bite (not very often). He bit me yesterday and drew blood, and it was very painful. I have tried stones in an empty water bottle and holding his mouth shout and giving eye contact and saying No! He just gets more aggressive and viscious, he grols and barks and jumps at me to bite me. He bites my legs when I walk about. I really don't know what else to try, I just want to sit with him and watch tv, but I cant even stroke him. Besides from the biting he is a good yorkie. He comes running when I call, sits on comand, gives me his paw and kisses. If he does something naughty and I shout No! he stops immediately. I love my little boy and have spent 4 weeks trying to correct this behaviour. I am so disappointed, I feel that I have let him down. He used to sleep on my bed, but has become so hyper, he has to spend the night in his crate. He has become a monster, and I am too embarassed to have friends around, as he will only bite them, it is so embarassing. He is so cute when he is asleep and when he first wakes up. He follows me everywhere, so he cant hate me. I really dont know what to do??????????