A blonde walks into a parts store and asked for a seven-hundred-ten.
We all looked at each other, and another customer asked, "What is a seven-hundred-ten?"
She replied, "You know, the little piece in the middle of the engine. I lost it and need a new one. It had always been there."
The mechanic gave the blonde a piece of paper and a pen and asked her to draw what the piece looked like. She drew a circle and in the middle of it wrote 710.
He then took her over to another car which had the hood up and asked, "Is there a 710 on this car?"
"Of course, it's right there."
She points to the OIL filler cap.
