The Joker as in Arkham Asylum

‘But I don’t want to go along with mad people’, Alice remarked.

‘Oh, you can’t help that,’ said The Cat: ‘We’re all mad in here.
I’m mad. You’re mad.’

‘How do you know I’m mad’, said Alice.

‘You must be,’ said The Cat, ‘or you wouldn’t have come here.’

-Lewis Carroll, ‘Alice’s Adventures in Wonderland‘

Batman – Arkham Asylum. June 9, 09