It's a beautiful warm spring day and a man and his wife are at the
    zoo. She's wearing a cute, loose-fitting, pink spring dress,
    sleeveless w/straps. As they walk through the ape exhibit and pass in
    front of a very large gorilla, the gorilla goes ape. He jumps up on
    the bars, holding on w/one hand (and 2 feet), grunting and pounding
    his chest w/the free hand. He is obviously excited at the pretty lady
    in the sheer dress.
    
    The husband, noticing the excitement, suggests that his wife tease the
    poor fellow. He tells her to pucker her lips, wiggle her bottom, and
    flirt w/the ape.
    
    She does and the gorilla gets even more excited, making noises that
    would wake the dead. Then the husband suggests that she let one of her
    straps fall; she does, and the gorilla is so excited, he's just about
    to tear the bars down.
    
    The husband then suggests that the wife lift her dress up above the
    thighs... this drives the gorilla absolutely crazy.
    
    Then, quickly the husband grabs his wife by the hair, rips open the
    door to the cage, slings her in w/the gorilla and says, "Now, tell him
    you have a headache."