Friday is supposed to be a day to look forward to - TGIF, right?

Sammy had been dreading Friday all week because he had to go to the dentist. He wasn't afraid of cavities or drilling. He just didn't like his dentist, and there was only one in town.

Sammy walked into the office, waited his turn and took his place in the dentist chair. A new dentist entered the office. He looked like he was fresh out of dental school. Indeed, he had a fresh idea.

"In order for you to understand dental health better, we're going to switch. You can look at my teeth."

Sammy stood up, and the young dentist hopped into the chair and opened his mouth.

Puzzled, Sammy picked up a tongue depressor and the little pokey mirror thing and went to work.

"Your teeth look good, Doc. But your gums are a little puffy. You might want to pay them a little attention."

"Thanks," the doctor replied. "You can get back in your seat. Since you gave me the same dental services I'm giving you, your visit is free."