From The Onion AV Club:
Joss Whedon is the creator and producer of Buffy The Vampire Slayer, Angel, and the now-canceled Firefly.
The Onion: Who could you take in a fight?
Joss Whedon: God. I’m constantly yelling at Him. A lot of my writers are quite religious, and I’m always yelling, “Come on! Strike me down! Wuss!” I don’t know why I have such anger toward somebody who doesn’t exist.