The Nun and the Fig Leaf

A nun had to use the bathroom, so she went into a bar, the first place she could find. She noticed that every time the lights went out, everyjoke cheered.
She went up to the bartender and asked him why. He said she would be better off not knowing, so she asked where the bathroom is. He gave her directions.
When she got there she saw a big naked statue with a fig leaf covering you-know-where.
When she exited the bathroom everyjoke cheered. She asked the bartender why, and he replied,”Every time someone lifts the fig leaf, the lights go out.”