I just love saying these and watching peoples reactions. If you go, get a gun, tell him if he comes near you in a serious threatening way you will kill him. That's what I would do, except I wouldn't tell him that. I carry a gun on a daily basis so it wouldn't be a problem. Ideally he would attack you with an object like a bat, in which case I'd lay his ass out legally, but you don't live in the U.S-so you might be in some trouble over there.