Pie, I completely get the motivation behind art like that, or what Marion Crane posted. But it also bugs me a bit as well. Batman had nothing to do with why this idiot did what he did. He did it because he's nuts or because he's evil (or possibly a bit of both). That really has nothing to do with Batman, its creators, or anything associated with the movies or comics whatsoever. I really dislike re-enforcing any sort of link whatsoever.