Hi, my name is Tammy. I am looking to rehome my boy Chance. He is a 7 yr old Shepherd mixture. He is a great boy and my best friend. It is killing me that I have to find him a new home. The problem is he is really animal aggressive and I have other pets in my house. He has lots of energy and loves to play. The home he goes to can not have any other pets. It breaks my heart to have to do this bu...