The story I heard was that Kopi Luwak was discovered by Indonesian slaves working Dutch coffee plantations. They weren't allowed to drink the coffee they farmed, but they were allowed to pick through civet dung and gather coffee that way.
Once the Dutch learned what the slaves were doing and tried it for themselves, they determined it tasted better than their own terrible brew methods and declared it a delicacy. Then the slaves were left with nothing.
Everett on his best behavior. A rare one.