I got this joke in response to the hilarious canary/parakeet joke from a few weeks ago. A lady walks in to a pet store (ouch) and asks the salesman if he has any parrots for sale. He replies that he has a very special parrot in back. They go to the back of the store and see a beautiful bird with a string around each leg. The salesman explains that if she pulls the string on the left leg, the bird sings "Nearer My God to Thee," and if she pulls the right string, it sings, "Raindrops Keep Fallin' on my Head." The lady asks what happens if she pulls both strings, and the bird yells out, "I fall on my butt, you big dummy!!" (rim shot)
(From the "Rest" of RHF)