Sally Kellerman became a Hollywood sensation playing Major “Hot Lips” Houlihan in 1970's *M*A*S*H*, but she reportedly faced doubts about being too attractive for the role. After landing the part, she faced an even bigger challenge: filming a notorious practical joke shower scene that left her character in an embarrassing and revealing situation. Kellerman later admitted she felt absolutely horrified and humiliated by the experience. But the bizarre lengths director Robert Altman went to capture her reaction, and the surprising effect the scene had on her career, made the story far more complicated than it first appeared.