A guy goes to the supermarket and notices an attractive woman waving at him. She says hello. He's rather taken aback because he can'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, 'Are you the stripper from the bachelor party that I made love to on the pool table with all my buddies watching while your partner whipped my butt with wet celery???'

She looks into his eyes and says calmly,

'No, I'm your son's teacher.'

Moral of the message: Always understand what a person is saying before responding.

I couldn't agree more. Here is one of the same nature.

David went to his fiance's home as instructed by the fiance to get some things. The fiance's hot sister opened the door wet and only covered with a towel. She lets him in and closed the door. She then said "you can come up to my room, your not married yet anyways".
David then watch her walk up the stairs and enter her room. He then hurriedly ran towards the door. Upon opening the door, there stood the fiance and her family. They said "congratulations David, you passed the test"...

Lesson of the story is always leave your condom on your car.