He was lost, but knew his car was parked in the library parking lot. He stopped a man in a tweed jacket and asked him, in his Southern drawl, "whar's the libarry at?"
The Harvard Man looked appalled and replied, "Here at Harvard, a preposition is something with which we do not end a sentence."
The good 'ol boy thought for a moment, and rephrased his question, "whar's the libbary at, asshole."