An invisible man is here to see you
Nurse: Doctor, there is an invisible man in your waiting room.

Doctor: Tell him I can't see him now. Next.

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!''