A nun was in her convent showering, when she heard a knock at the door.
Naked she went to the door to ask who was knocking. "Who is it?", she 
said, and the guy answers "blind man".  She thinks for a second, and 
decides it's ok to let him in without putting on any clothes because he's blind.  
She opens the door and the guy enters and says  "Nice rack sister, now where do
you want the blinds".

- Dee