Poll: Turned down a job only to watch the company "make it big"?

A friend of mine was an early employee at a particular startup. He asked me to join the company every few months for 2+ years. I kept turning him down because I didn't "believe in the idea". Well, that company recently sold for $200M+.<p>Have you ever turned down a job at a small company only to watch them "make it big" and subsequently make the founders rich? If so, how many times?