'The Real World: Seattle': Stephen Williams
Since brutal smackdowns are so commonplace on an average episode of the Bad Girls Club nowadays, the “slap heard around the world” from this 1998 season of MTV’s seminal reality show seems tame by comparison. As departing cast member Irene McGee made her way to her car, she called housemate Stephen a “homosexual.” Incensed, Stephen retaliated by first throwing her favorite stuffed animal into the water, then stopped her car so he could open the passenger door and hit her in the face. Irene may have laughed it off, but the remaining housemates didn’t find any humor in what had happened. Stephen was allowed to stay in the house, provided he took an anger-management course. Oh, and he came out as gay 10 years later.