Fans nowadays primarily know Hawkeye as a wisecracking Avenger and marksman extraordinaire, one with luck so bad that he sometimes makes Spider-Man's troubled life look charmed. Through all of his trials and tribulations, ol' Clint Barton always comes out on the other end with a smirk on his face and a quiver full of quips. Considering how heroic Hawkeye seems nowadays, readers might be surprised to learn that he started out his career by getting on Iron Man's bad side.