Market Research... A market researcher called at a house and his knock was answered by a young woman with three small children running around her.

Market Research...
A market researcher called at a house and his knock was answered by a young
woman with three small children running around her. He asked her if she
minded replying to his questions and when she agreed, he asked her if she
knew his company, Cheeseborough-Ponds.
When she said no, he mentioned that among their many products was Vaseline
and she certainly knew of that product. When asked if she used it, the
answer was "yes." Asked how she used it she said, "To assist my husband and
I in conjugal matters."
The interviewer was amazed. He said, "I always ask that question because
everyone uses our product and they always say they use it for the child's
bicycle chain, or the gate hinge; but I know that most use it for conjugal
matters. Since you've been so frank, could you tell me exactly how you use
it?"
"Yes, we put it on the doorknob to keep the kids out."