Creativity, for a lot of young people, is a coping mechanism. It's the only place they feel comfortable. It's the only time they feel like they're being heard or can make a difference, is if they can go into a room and do a drawing or go to a garage and play a song or retreat to this world.

There was a time I was willing to be a clown for people who I felt were the perfect person for me.

We had established Harley Quinn as an accomplice to the Joker who was also crushing on him and found herself in the middle of this weird relationship being at the beck and call of his every whim. We wanted to stretch her and make her a stronger character, so to have her leave him and go off on her own was a story I wanted to tell for a while.

'Boo & Hiss' has been a passion project of mine for a couple of years. I was intrigued with the idea of what would happen in a classic cartoon predator/prey relationship if the predator - in this case, a cat - got to finally do in his adversary only to have the mouse return as a ghost and bedevil the cat.

If we made the 'Batman' games more realistic, you'd have to be Bruce Wayne for half the game, counting his money and dating supermodels.

I was writing a script about the Joker menacing a regular person who had strayed into his path, and I needed to give him a gang of henchmen to work with him. The idea occurred to me, let's put in a female henchperson, because that seemed like a fun variation on the regular big thug guys.

One Thanksgiving weekend, I had a lost weekend at a friend's place with 'Grand Theft Auto.'

Batman doesn't use a gun. When Bruce Wayne thinks he had to resort to a street thug's level to defend himself and the girl he was rescuing, he decides he can't be Batman anymore.

I've always liked the Krampus character, and I've always been fascinated with him, especially the tradition that he was such a part of the holiday season in Europe, in Germany, Austria, northern Italy, various other places.