A guy goes to the supermarket and notices an attractive woman waving at
him. She says hello.
He's rather taken aback because he an'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 arse with wet celery???"
She looks into his eyes and says calmly,
"No, I'm your son's teacher."
well it made me chuckle