"Door-To-Door Survey" joke
When a researcher called at a house, his knock was answered by a young woman with four small children running around her. He introduced himself as a representative of Cheeseborough Ponds and asked her if she would mind answering some questions.
When she replied that she didn't mind answering his questions, but had no idea who Cheeseborough Ponds was, he mentioned that among their many products was Vaseline. He then asked if she used Vaseline, and her reply was "Yes".
"How do you use the product?" he asked.
"We use it to assist during sexual intercourse," she replied.
Surprised by her answer, he said, "I always ask that question because everyone seems to use our product. Mind you, they always say they use it for the child's bicycle chain, the hinge on the gate, and things like that, but I know that the majority of them use it for sex. Since you've been so frank, could you tell me exactly how you use it?"
"Of course," she answered. "We put it on the doorknob to keep the kids out."
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