A few days ago I was having some work done at my local garage. A blonde came in 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?”

She pointed and said, “Of course, it’s right there.”

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[a picture of an OIL screw top, upside down, which looks like the numbers 7 1 0]