The Pope's riding through the streets of Rome in his bubbletop limo when he notices that his chauffeur is yawning. "What's the matter, Giovanni, are you tired?" he asks. "Oh, I'm ok, Your Holiness," the driver answers. "If you're tired, get in the back and I'll drive," says the Pope. "But, Your Holiness, it's my job..." protests Giovanni. The Pope's voice turns hard: "Giovanni, whose car is this?? Now, get in the back!"

The Pope gets behind the wheel and he's having a grand old time. But he's never driven before, so he drives on sidewalks, knocks over garbage cans, etc. A Rome police car pulls him over and hands out several moving citations. Just as the Popemobile pulls away, another Rome police car pulls up behind the first one.
"That's some car," says the second cop to the first. "Whose is it?"
"I dunno," says the first cop. "But he must be important--the Pope's driving him."