A guy goes to the supermarket and notices an attractive woman waving at him.
She greets him, “Hello.”
He’s rather taken aback, because he can’t place where he knows her from.
So he asks, “Do you know me?”
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 he exclaims, “My gosh, are you the stripper from my bachelor party that I made whoopee with on the pool table with all my buddies watching, while your partner whipped my behind with wet celery?”
She looks into his eyes and replies calmly, “No, I’m your son’s 4th grade teacher.”