My ex wife has a dog that has me worried. The dog is a 2 year old female Rot and lives with the ex and my two young children. I was visiting them this weekend and the dog got out - off her chain during the middle of the night. There doesnt seem to be any way to keep her on her chain (she was in a full nylon harness, apparently she had weakened it enough that she could bust right through) We were awakened during the night to the sound of the dog mauling the cats - she killed one of the cats and seriously put the hurt on the other before we got there. The next day, the dog went back out on to the chain, this time wearing two of these nylon harnesses to attach her to her chain and she seems secure - for now. I watched the dog with a more a critical eye for the rest of the weekend. A guy rode by on a bike and the dog ran like heck to the end of her chain, not growling or barking but snorting like a bull. She was pulling like heck at the end of her heavy duty cable and she is a seriously powerful dog. Apparently she doesnt like bikes She reacts about the same when people walk by with their dogs. It seemed about like the way she had reacted to the cats the day before. The ex told me that the last time she got off her chain she was attacking her goat and in her opinion, the dog was going to kill the goat. As far as we know this is the first time that she has killed anything, but we do know that she has now tasted blood and then went for more. My opinion is that she needs to go and I dont care where, even though this dog is my childrens pet. I dont think that shed hurt my kids, but I do think this is a dangerous situation and a huge liability. Id love some feed back from people who know more about dogs. Is there anything to the old belief that an animal who has hunted and killed, tasted blood, will always want more - should this dog be put down? Or would she be all right in the right kind of home (one with no cats!) Or would the dog be fine with a little extra training - or am I just over reacting, is this just a normal part of pet ownership?