John went to a pet store and selected a kind looking dog. He asked the salesperson about the dogs pedigree.

She said the dog came from a very long line of distinguished ancestors. Both its father and grandfather were dogs.

Its mother, she said, was a bitch and its grandmother was a r-e-a-l bitch. John was delighted and said, Is this dog smart and intelligent?

Oh, yes, she said, this dog is so smart that within a week it would teach your entire family to talk in its language.

John was impressed and asked if the dog was faithful.

The salesperson replied, I have sold this dog five times and it has always come back.