During the course of a game, coaches often request to speak with referees for clarification on certain calls (or non-calls), or maybe just to yell at them. During one game, referee Dan O'Halloran had had it with Montreal Canadiens coach Michel Therrien, and refused to come over at the coaches request. In this exchange, you can see O'Halloran saying that unless Therrien wants to call a timeout, he has nothing to say to him.