Great joke - I just had to pass it on !!!! :-)
A guy goes to the supermarket and notices an attractive woman waving at
him. He waves back and says hello.
He's rather taken a back because he can't place exactly where he knows
her.
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 friend whipped my butt with wet celery???"
She looks into his eyes and says calmly, "No, I'm your son's teacher."