A lady went to a pet shop to buy a parakeet. She asked the clerk for a bird that could sing.

　　The man sold her a parakeet, and she took it home. There, she examined the bird and found out it had a broken leg.

　　She returned to the store with the bird and told the clerk that the bird had a broken leg.

　　"Lady," he answered, "when you brought the bird, you asked for a singer, not a dancer."