When any type of threat includes indirect or veiled references to things they might do, such as “You’ll be sorry,” or “Don’t mess with me,” it is best to ask directly, “What do you mean by that?” Ask exactly what the person is threatening to do. His elaboration will almost always be weaker than his implied threat. If, on the other hand, his explanation of the comment is actually an explicit threat, better to learn it now than to be uncertain later.