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 man walked into
A man walked into the local Chamber of Commerce of a small town, obviously desperate. Seeing a man at the counter, the stranger asks, ''Is there a criminal attorney in town?''

To which the man behind the counter immediately quipped, ''Yes, but we can't prove it yet!''