The rat trick was a gimmick popularized by fans of the Florida Panthers of the National Hockey League (NHL) during their 1995–96 season and trip to the 1996 Stanley Cup Finals. The term, a play on hat trick, was coined by Panthers goaltender John Vanbiesbrouck after teammate Scott Mellanby killed a rat in the locker room prior to the team's home opener, then scored two goals. Fans immediately picked up on the idea and began throwing plastic rats on the ice to celebrate goals. By the time the Panthers reached the 1996 playoffs, thousands of rats hit the ice after every Panthers goal, resulting in an off-season rule change by the NHL that allowed for referees to penalize the home team if fans disrupt the game by throwing objects onto the ice.