The head nun tells the two new nums they have to paint their room without getting any paint on their clothes. So one nun says to the other, "We'd better take off all our clothes and lock the door."
They do this and begin painting. Soon they hear a knock at the door. "Who is it?" they ask.
"Blind man!" comes the answer.
The nuns look at each other and one says, "He's blind, he can't see anything. Let him in."
The man walks in and says, "Hey, nice tits. Where do you want me to hang the blinds?"
Belinda, via e-mail