The God's Must Be Crazy
Xolin and his tribe of San/Bushmen relatives are 'living well off the land' in the Kalahari Desert. They are happy because the gods have provided plenty of everything, and no one in the tribe has unfulfilled wants.
One day, a glass Coca-Cola bottle is thrown out of an aeroplane and falls to earth unbroken. Initially, this strange artifact seems to be another boon from the gods—-Xolin's people find many uses for it. But unlike anything that they have had before, there is only one bottle to go around.
This exposes the tribe to a hitherto unknown phenomenon, property, and they soon find themselves experiencing things they never had before: jealousy, envy, anger, hatred, even violence.
Since it has caused the tribe unhappiness on two occasions, Xolin decides that the bottle is an evil thing and must be thrown off of the edge of the world. He sets out alone on his quest and encounters Western civilization for the first time.