The other day I was in the local auto parts store. A lady came
in and asked for a seven ten cap.

We all looked at each other and asked, "What's a seven ten cap?"

She said, "You know, it's right on the engine. Mine got lost somehow
and I need a new one."

"What kind of a car is it?" they asked. Now I'm thinking maybe an
old Datsun Seven Ten, but she says that it is a Buick.

"Okay, lady, how big is it?"

She made a circle with her hands about 3 1/2 inches in diameter.

"What does it do?" we asked.

She said, " I don't know, but it's always been there." One of us
gave her a note pad and asked her if she could draw a picture of it.
So she made a circle about 3 1/2 inches in diameter and in the
center she wrote 710.

The guys behind the counter were watching as she wrote it....
And they just fell down behind the counter laughing hysterically.
Then one guy said, "I think you want an oil cap."

She said, "Seven Ten cap, oil cap, I don't care what you call
it. I just need one and I don't see what is so funny about it.
(Yes, she was a blonde!)

**Now get a paper, draw a circle, write 710 inside of it. Now
rotate the circle 180 degrees and check the results.