In Pamela Anderson's new memoir, "Love, Pamela", she claims that, when she was a 23 year-old actress playing Tool Time Girl Lisa on the sitcom "Home Improvement" in 1991, that the show's star, Tim Allen, allegedly flashed her behind-the-scenes on the show's set once and was totally naked underneath. Allen has categorically denied the accusations, saying, "No, it never happened. I would never do such a thing."