I feel so bad that this happened. My Mikey, who looks like a pitbull cross, is unneutered. I have an appointment to have him done on Jan. 26. I couldn't afford it until now. My landlady also has a dog that is unneutered, a mini border collie (I don't know what the name of that breed is). They hate eachother. Just for the record he gets along fine with all neutered dogs and females of course. But he hates Teddy and Teddy hates him. But Mikey is bigger and today he hurt Teddy. My bf's uncle let him out this morning without putting him on the leash (there's no fence). We let him off leash sometimes (we live outside of the city) but only when we know that Teddy is in the house. Anyway, there was a loud fight out there and my bf went outside to break it up. Teddy had some teeth marks on him that looked like he had been shaken. God, what an awful story. When my landlady was examing him Teddy bit her and she went to the hospital to get a tetanus shot or something. Then she came back and took Teddy to the vet (I would have done it in the other order). She told the vet that our "pitbull" bit her dog and I don't know what's going to happen about that. I'm really worried for Mikey. I know that his aggression is because he isn't neutered and that will be done in a few days. We're going to keep him tied up (except when we walk him or he's in the hosue) and we are looking to move somewhere with a nice big fenced yard. I know what I did wrong so please don't critize me. I'm beating myself up enough already. I just wanted to vent because I"m really stressed and thought maybe you guys would have some feedback.