The NBA is full of interesting characters, and throughout its history some of its signature players have also been some of its most unique personalities. However, that is not to say that these personalities are all good. For every polished and personable player like Magic Johnson, there is an absolute nut job like Dennis Rodman or Latrell Sprewell. But who are the craziest of the crazy? It’s not just enough to get a couple ejections a season. You’ve got to charge into the stands to fight fans, bring guns into the locker room, or get involved in a sexual harassment lawsuit against your team. In light of the never-ending saga of J.R. Smith and the New York Knicks, here are the Biggest Headcases in NBA History.