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 recruit who wasn't really meant to be a soldier...
A recruit who wasn't really meant to be a soldier went out to the rifle range for the first time. He missed every target and most of the hills behind them. Despondent, he said to the sergeant, "I think I'll just go and shoot myself."The sergeant said, "Better take a couple of extra bullets!"