Ron Artest was a basketball player for the Los Angeles Lakers before he ate a thunder stone (probably) and transmogrified into Metta World Peace. That was only partially a joke — he really did legally change his name to Metta World Peace, which is a bit redundant since Metta means "goodwill," so his name is basically Nice Stuff McAlsoNice.
Of course, the man with the nicest name ever is, well, very not nice. Not only was he arrested for domestic violence, he also got a job he didn't need at Circuit City simply so he could get a discount! Okay, maybe we should have reversed those two, but all in all, World Peace seems to be way less awesome than you'd think.
Okay, but did he do anything terrible to the fans? Well, what about the time he started a brawl by attacking not just a fan, but the wrong fan? See, what happened was, he was being heckled by a fan of his opposing team, because World Peace had just committed a foul. The upset fan threw his Coke at World Peace, who understandably jumped in the stands and confronted … someone else. Because when you're mad, who cares who you actually get mad at? Of course, getting up in someone's face after being heckled after fouling someone can lead to, well … this. For those who can't, or don't want to click that link, it's video of a huge brawl between World Peace's team, fans, and the opponent's team. You know, for someone who has "Peace" in his name, he's pretty darn violent.