Geezer Butler is the most important member of Black Sabbath.

Yao Ming (an NBA basketball player) has, nearly single-handedly, saved the lives of tens of millions of sharks by simply asking citizens of China to stop eating shark fin soup. Since he started doing this, the price of shark fins has tanked, and 90+ percent of people surveyed in China support a ban on selling shark fins.

I sold a bunch of 70’s and 80’s tabletop roleplaying stuff when I went to college. A few years ago, I reacquired many of those titles at collector’s prices. Not my most brilliant financial move.