Before there was Megadeth, Dave Mustaine was the guitarist in a promising San Francisco thrash metal band called Metallica. And then he was fired for being an obnoxious drunk, a slight compounded by the fact that all the other members of Metallica were also obnoxious drunks. From then on, Mustaine was obsessed with getting his revenge, and he formed Megadeth with the purpose of dethroning Metallica from the top of the thrash metal heap. Alas, it proved difficult to compete with the most successful metal band in history. No matter what Mustaine did, he was destined for second place.