A blonde woman came in and asked for a seven-hundred-ten.
They all looked at each other, and one of the mechanics 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 woman 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."
Click here to learn the identity of the mysterious 710: