A male market researcher was calling on homes on
behalf of Vaseline. A woman answered the door.“Do you use
Vaseline?“
asked the researcher. „Certainly,“ she said. „It’s very good for
cuts, grazes and burns.“ „And what about anything else?“ he asked.
„Like what?“ He became embarrassed. „Well, sex, maybe.“ Oh, of
course.“ she said. „I smear it on the bedroom doorknob to keep my
husband
out.“