The other day I was in the local auto part store. A lady came in and asked for a “seven ten” cap. We all looked at each other and said, "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."

"How big is it?" they ask.

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

"What does it do?" they asked.

"I don't know,” she said. “But it’s always been there!"

Someone gave her a note pad and asked her to draw a picture of it. She makes a circle about 3 1/2 inches in diameter and in the center she writes “710”. The guys behind the counter are looking at it upside down as she writes it. They fall down behind the counter laughing in hysterics.

One guy finally says, "I think you want an ‘OIL’ cap, lady."