A guy goes to the supermarket and is startled when a gorgeous blonde waves at him. "Do you know me? he asks.

"I think you're the father of one of my kids," she replies.

He flashes back to the only time that he cheated on his wife. "Are you the stripper I banged on the pool table at my bachelor party with my buddies watching while your partner whipped my butt with celery?"

"No, I'm your daughters math teacher."