A blonde came into the parts shop and asked for a seven hundred and ten. We all looked at each other, bewildered.

Another customer asked, "What is a seven hundred ten?"

She replied, "You know, the little piece in the middle of the engine. I have lost it and need a new one." She said she did not know exactly what it was, but that it had always been there.

The mechanic gave her a piece of paper and a pen and asked her to draw as closely as possible what the piece looked like. She drew a circle, and in the middle of it wrote, "710."

Still unclear what she was asking for, the mechanic took her to another car which had its hood up and asked "is there a 710 on this car?" She pointed and said, "Of course, its right there."

Don't know what a 710 is? Scroll down.