The Montreal Screwjob was a notorious professional wrestling incident where the outcome of a major match was changed without one of the wrestlers being informed – in order to "screw over" Bret Hart, who was in bitter conflict with his employer, WWF owner Vince McMahon at the time. It occurred on November 9, 1997, at the Survivor Series pay-per-view event produced by the World Wrestling Federation in Montreal, Quebec, Canada. During the WWF Championship match between Shawn Michaels and champion Hart, Vince McMahon, who was in charge of matches and storylines, and producer of the show – and a small number of WWF employees, most significantly the referee – covertly changed the predetermined outcome of the match in favor of Michaels; the screwjob occurred without Hart's knowledge, causing him to lose the Championship. Hart took the incident as a personal insult, because he did not wish to lose the title on "home soil" in Canada. Since this event, the term "screwjob" has come into wrestling parlance.