thanks. i really DO need to get pro. help because i DID separate them and when i turned my back, Buster screamed and when i turned around, he had jumped the fence and Tyler was attacking him. We took Buster to the vet to see if he was alright ( he IS the oldest out of all my dogs) and he fractured he paw WORSE. I think we might have the vet amputate his leg to save him the pain and to save us some of our money. I will call the vet today and keep you updated. Thanx.