Comment: That's always the standard response...you don't know he was "just" looking to steal. True, I don't, but neither do you know he was up to no good. (Although, I think, in this case, we'd both agree he was likely up to no good.) Neither am I saying "cower," but I think vigilante "justice" (especially in this preemtive manner prior to a crime having actually occurred) is a really bad idea fraught with danger for everyone.