A man realizes he needs to buy a hearing aid, but he is unwilling to spend much money.

"How much do they cost?" he asks the clerk.

"That depends," says the salesman. "They run from $2 to $2,000."

"Let's see the $2 model," the customer says.

The clerk puts the device around the man's neck. "You just stick this button in your ear and run this little string down to your pocket," he says.

"How does it work?" the customer asks.

"For $2, it doesn't work," the salesman replies. "But when people see it on you, they'll talk louder."