A guy was in the line at the supermarket, when he
noticed a beautiful blonde woman smiling and waving at him. So he says,
"Do
I know you?" She replies. "I may be mistaken, but I think you may be
the father of one of my children."

Instantly his mind shoots back to the one and only time he had been
unfaithful. "Crap!" he says. "Are you the stripper
from my bachelor party that I had sex with on top of Joe's pool table
in front of all my buddies while your girlfriend spanked me with a wet
celery stick and stuck a cucumber up my butt?"

"No" she replies quietly. "I'm your daughter's second
grade teacher."