An old one with a new dressing ..

A man died and went to heaven. As he stood in front of St. Peter at
the Pearly Gates, he saw a huge wall of clocks behind him.

He asked, "What are all those clocks?" St. Peter answered, "Those are
Lie-Clocks. Everyone on Earth has a Lie-Clock. Every time you lie the
hands on your clock will move."

"Oh," said the man, "whose clock is
that?" "That's Mother Teresa's. The hands have never moved, indicating
that she never told a lie. "Incredible," said the man. "And whose
clock is that one?" St. Peter responded, "That's Abraham Lincoln's
clock. The hands have moved twice, telling us that Abe told only two
lies in his entire life."

"Where's President Bush's clock?" asked the man. "Bush's clock is in
Jesus' office. He's using it as a ceiling fan.