A young nun is taking a bath in her convent. She hears a knock at the bathroom door.
"Who is it?" she calls out. "It's the blind man," says the visitor. The nun thinks, 'Oh, I'm not
likely to be embarrassed if he can't see me,' so she says, "Come in." A workman enters.
"You've got a lovely pair of knockers, lovey. Where do you want these blinds hanging?"