Every caliber of professional in the world of sports is susceptible to a hard-to-watch freakout. That means minor-league managers, independent-league infielders, career backup NBA point guards, NBA flameouts, and MLB umpires. But it also includes hall-of-fame pitchers, hall-of-fame hitters, hall-of-fame coaches, hall-of-fame quarterbacks, hall-of-fame tennis players and hall-of-fame heavyweight boxers. Indeed, draft busts and legendary sports heros alike have caused chaos. We're talking all-out brawls with fans, falling apart under the brightest lights, and literally spitting in the face of an official. So here are the most notorious sports meltdowns of all time.