FATHER OF ONE OF MY CHILDREN:-
A bloke is in line at the supermarket when he notices that a rather
dishy blonde behind him has just raised her hand and smiled hello to him.
He is rather taken aback that such a looker would be waving to him, and although familiar, he can't place where he might know her from, so he says "Sorry, do you know me?"
She replies, "I may be mistaken, but I thought you might be the
father of one of my children."
His mind shoots back to the one and only time he has been unfaithful.
"Holy shit," he says, "Are you that stripper from my stag night
that I shagged on the pool table in front of all my friends while your
girlfriend whipped me with some wet celery and stuck a cucumber up my arse?"
"No," she replies, "I'm your son's English teacher."