A market researcher for the Vaseline Company knocked on a door and was greeted by a frazzled young mother with three little kids running wild around her.
"I'm conducting a survey about Vaseline," he said. "Do you use the product?"
"Absolutely," she replied. "My husband and I use it all the time."
Curious, the researcher asked, "If you don’t mind me asking, what do you use it for?"
“We use it when we make love,” she answered matter-of-factly.
The researcher blinked, surprised. “Wow, most people give me some nonsense about using it on a squeaky door or a rusty bike chain. But let’s be honest—I know what it’s really used for. I appreciate your honesty! Since you’ve been so open, can you tell me exactly how you use it?”
The woman smiled and said, “Oh, that’s easy. We put it on the doorknob—keeps the kids out.”