Tim Conway and Harvey Korman in a 1969 sketch from "The Carol Burnett Show". Conway plays a rookie dentist struggling to give novocaine to his first patient. Korman admits in later interviews he peed himself laughing at Conway's antics during this sketch.

Tim Conway and Harvey Korman in a 1969 sketch from "The Carol Burnett Show". Conway plays a rookie dentist struggling to give novocaine to his first patient. Korman admits in later interviews he peed himself laughing at Conway's antics during this sketch.