Johnny Knoxville's daughter Madison (named after a Wonderbra model which he and his wife, Melanie, spotted while watching television one night) was a curious child. "I once walked into her room," Knoxville recalled of six-year-old Madison, "and she was in there playing with a friend and they were naked and, um, exploring each other." His reaction? "I walked right out and was like, 'Melanie!'"