Do You Floss?

I was once an Anthropolgy student. We were told of this tribe, the Nacirema who were obsessed with their teeth. They had special medicine men who were tasked to examine people's teeth. Even when their teeth did not hurt, the tribespeople would regularly go see the special medicine men to receive treatment to prevent later pain.
The article is a classic. It describes the American (Nacirema is American in reverse) from the perspective of an outsider. It is quite refreshing and entertaining. Wikipedia has an entry on it http://en.wikipedia.org/wiki/Nacirema that is quite informative.