A nun is undressing for a bath and while she's standing naked, there's a knock at the door. The nun calls, "Who is it?"

A voice answers, "A blind salesman."

The nun decides to get a thrill by having the blind man in the room while she's naked so she lets him in. The man walks in, looks straight at the nun and says, "Uhhhh, well hello there, can I sell you a blind, dearie...?"