I've known about Kopi Luwak for years - when I saw the bucket list and heard it being mentioned in the first 5 mins I know the joke was coming. And the stomach acids change the flavour of the bean. Have you had it? It is really nice, and this is coming from a person that spent a year calibrating grinders and tasting espresso to make sure the flavours were balanced etc. When most people wouldn't know the difference. Regardless, Vietnam is the second/third biggest coffee producer in the world and the coffee I was drinking day in/day out in asia was some of the best i've had in my life.
Also, I didn't drink (to my knowledge) civet coffee once when I was in asia

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