Streaker Robert Opel -- 1974

David Niven was about to present when a naked dude ran behind him flashing a peace sign. Niven famously quipped, "...the only laugh that man will ever get is by stripping off and showing his shortcomings." But was it a set-up to shake life into the ol' awards show? Some think so. Still, yay for naked people because they can't be asked, "Who are you wearing?"