A man phones a mental hospital and asks the receptionist...
A man phones a mental hospital and asks the receptionist if there is anybody in room 27. She goes and checks, and comesback to the phone, telling him No, the room is empty. "Good," says the man. "That means I must have really escaped."

A lawyer returns to his parked BMW to find the headlights...
A lawyer returns to his parked BMW to find the headlights broken and considerable damage. There's no sign of the offending vehicle but he's relieved to see that there's a note stuck under the windshield wiper."Sorry. I just backed into your Beemer. The witnesses who saw the accident are nodding and smiling at me because they think I'm leaving my name, address and other particulars. But I'm not."