She used to be a nun:

This german tourist was on a bus tour of Castilla during the summer
that had a stop at this old convent. The tour wasn't that interesting
and he managed to stay behind and start wandering. Feeling the urge,
he stopped to pee on the outside wall of the chapel. While he was
doing his business, he was surprised by the Mother Superior. "OH! I am
soo sorry!' "No," she replied. "Actually, I've never seen a
man's...You know. Could I take a look?" The tourist was freaked out by
a nun asking to see his works but it was kinda kinky in a way, so he
figured, what the hell. The nun looked at it for a bit and as he was
about to put it away she said, "You know, I always wanted to touch it.
Would you mind...?" "This is really wierd, but sure." The tourist was
getting really exited. Who could say that you had been tossed off by
a nun? "Could you take it all out so that I can get a complete
expience?" the nun requested. The tourist, sure that he was about to
get laid, willingly took down his pants. The nun began fondleing his
testicles and sudennly straightened, and said,

"Don't (SQUEEZE) piss (SQUEEZE) on the (SQUEEZE) church (SQUEEZE) walls!!!!!!!!!!!(SQUEEZE).