About three years ago, that is sometime in 2005, hongcho (red vinegar), heuckcho (black vinegar) or gamsikcho (persimmon vinegar) got very popular in Korea. Those are various kinds of vinegar drinks that are fermented from fruit or grain and watered down so people can drink it easily. When I heard about this vinegar boom a few months later in America, I thought some Koreans don't mind eating or drinking weird stuff just to get healthy. It was my typical judgment on that as another Korean living outside of the country. Except the rumor(?) that Chinese circus girls and boys are ...