I need help, Hobbes is 1 year old, very loving and usually laid back. We got him when he was 13 weeks old. In the past few months he has acted strange. He can be sound asleep (usually in my husbands lap alone) and he wakes up suddenly growling, baring his teeth and will try to bite my husband. He seems like he doesn't know what he is doing. He has done this with me only one time. We have two other yorkies but he doesn't usually do this to them. Has anyone had this problem? Any advice is appreciated.