I don't enjoy killing animals but in this case this dog probably would have ended up dead anyway. As I said, this dog had been seen running livestock and no one in the area knew where it belonged. When I recovered it, I found the id tag on collar and called owner. They were under the impression dog could run free in outside city. They were the cruel ones. This is reason why I got Frank. He is a great detterant to canines of any sort. With him out there I don't worry, don't have to watch constantly, and only problem I have now is a 500 pound equine trying to go thru my pockets for treats. LOL. I do have dogs that are confined to their area (1/4 acre backyard) and only one is allowed to be free out of fence (with me) because she is the herding dog (she can move goats).