A guy goes to the supermarket and notices an attractive
woman waving at him. She says hello.

He's rather taken aback because he can't place where
he knows her from. So he says, "Do you know me?"
To which she replies, "I think you're the father of
one of my kids."

Now his mind travels back to the only time he has
ever been unfaithful to his wife and says, "My God,
are you the stripper from my bachelor party
that I made love to on the pool table with all my
buddies watching while your partner whipped my butt
with wet celery???"

She looks into his eyes and says calmly, No, I'm
your son's teacher."

oops!