I have a 2yr old mix breed (possibly a black mouth cur) that I got from my mother. She had him with her other dog, never had a problem with him except housebreaking and she would leave him in a kennel when gone. The problem I have with him is he is starting to get aggressive with strangers he does not know. He try to go after the neighbors over the fence, he has bitten (but not broken the skin) my sister twice, and tried to lunged at the neighbors little girl when she came over to play with my 4yr old. He has also started acting like we beat him. We have never laid a hand on him even when he peed on the carpet. But he just act abused, he is very very fearful acting. I do not know what to do for him. I want him to be a happy dog, my daughter loves him but if he continues to bite people I will not be able to keep him. Also, I do not want him to go through life fearfull of everybody. Any help would be greatly appreciated. Thank You.