The Joker smiles, face going a little distant again. "Well, you'd read in the newspaper that because of the crime, because of whatever, something was drawing all the crazies in...but no one really believes that. The truth is that it's Gothams very soul...it breeds it's own. No one knows why. But most the residents of Arkham? Check their files. Home grown. And then of course there are those like me...those who have risen above the wastes of society, the impediments of social constructs, to be who we truly are. I think, though, that I was the first to stop taking the world seriously." He regards Xellos, eyes large and very dark, head lowered, one side of his scared mouth curving dangerously upwards. "For, ah, what's life worth if you can't...enjoy it?"