A woman answers the door to a market researcher. "Good morning madam, I'm doing some
research for Vaseline. Do you use it at all in your household?"
- "Oh yes, all the time. It's very good for cuts, grazes and burns."
- "Do you use it for anything else?"
- "Like what?"
- "Ahem.. err.. well.. during.. ahem.. sex."
- "Oh, of course. Yes, we smear it on the bedroom doorknob to keep the kids out."