That poor baby, what a brave soul he was. This reminded me of my Cocker Spaniel Chelsea. We adopted a Golden Retriever from our local shelter and he was fine the first day but the next day he lunged at me and she jumped between us to stop him from biting me. It was terrifying, she was my little protector, neither of us was hurt but we had to take the G.R. back to the shelter (my children were small, to much of a risk). We found out that he was aggressive and the people who turned him in did not tell anyone because they were afraid he would not get adopted.