Omg, that poor dog! It will NEVER cease to amaze me how people can treat animals like they do. As for the whole fighting issue dont even get me started. You shouldn't feel bad. You did all you could!! That's so awesome that you offered to pay the dogs medical bills. You did a LOT more than most people would have done. I feel like crying for the dog and for you feeling so bad. You are a wonderful person for doing what you did. Thank you for being that kind of person.