"ATR" joke

A man traveling by plane was in urgent need of a restroom. Each time
he tried the restroom, it was occupied. A kind stewardess, aware of
his predicament, suggested that he try the ladies room, but cautioned
him against pushing any of the buttons.
Making the fatal mistake that so many men make in disregarding what
a woman says, the man let curiosity get the best of him. He carefully
pressed the first button marked WW, and Warm Water sprayed him on his
bottom. He thought "The girls really have it made"... still curious, he
pressed the button marked WA, and Warm Air dried his bottom. He
thought "That's out of this world" and pressed the button marked PP. A
large Powder Puff powdered his bottom lightly. Naturally, he couldn't
resist pushing the last button which was marked ATR...
When he awoke in the hospital he panicked. "What happened? Where am
I?" he cried, "The last thing I remember was being in the ladies room
aboard plane. "Yes," said the lovely nurse, "you were having a great
time until you pressed the button marked ATR - which stands for
Automatic Tampon Remover. Your penis is under your pillow."