There is at least one infamous recording of Alex Trebek swearing up a storm after getting tongue-tied reading some local promos for 'Jeopardy!'(He also tells off the director, who points out that when Trebek says 'dollars', it sounds like 'dullars'.) This 'rave out tape' used to air on the old Don(Geronimo) and Mike(O'Meara) radio show, along with the Casey Kasem classic where he reads a 'Long Distance Dedication' about 'a bleeping DOG dying!' ;D