It is human nature to argue. When someone challenges your authority, your opinion or your knowledge, it\'s normal that your first reaction is to assume a defensive posture or attitude. How vociferously you defend your point of view usually depends on how sure you are or how strenuously the other person raises the question.
Officials aren\'t expected (some would say allowed) to argue. In all but the rarest cases, officials are supposed to turn a deaf ear to criticism and arguments, letting the comments bounce off them like bullets off Kevlar. It is one of the most difficult aspects of officiating, but also one of the most important.