RAY: A woman and her husband decide to go shopping one Saturday for a used car. So they go to the neighborhood used-car dealer and a young man is showing them the various cars in the lot.

They don't seem to be really excited about any one of them. Finally, the used-car dealer says, "Oh, how could I have forgotten this one? I have just the car for you. I know you are going to love it."

He takes them over to a late model Japanese car. "You're not going to believe this. This car belonged to my fourth-grade teacher, Ms. Johnson. It's a wonderful car, and she treated it very well and had all the service done here. Interestingly, she never left town with the car. All she ever did with the car was driving from home to school and back, and on Sundays, she went to church. She never used the car on Saturdays."

They look over the car and it looks magnificent. So the woman asks the obvious question: "Why did Ms. Johnson sell the car?"

"Well, as luck would have it,' he says, 'She was called out of town on very short notice to care for a sick relative in the Midwest, so she came in here last week and sold us the car, and of course, it's your good fortune that it's here."

The woman gets in behind the wheel and starts up the engine. It sounds fine. The husband sits in the passenger seat and they fiddle with the controls. She fiddles with the controls on the dashboard, tries the wipers, blows the horn, and looks around the car.

"Geez, honey," her husband says, "It's a great color, too. I think we ought to get it."

"I don't think so," she says, as she turns off the key. "He's lying to us."

The question is, how did she know? (The answer is not that the salesman was moving his lips.)