Robert Liston, MD

He was a Scottish speed surgeon during the 1800s. In one case, he amputated a leg in less than 2.5 minutes (the patient died afterward from gangrene). He amputated, in error the fingers of his young assistant (who died afterward from gangrene). He also slashed through the coat tails of a distinguished surgical spectator, who was so terrified that the knife had pierced his vitals he dropped dead from fright. It was the only operation in history with a 300 percent mortality.