At the annual Justice League Halloween party…

Superman: Bruce, are you staying for the party?

Batman: If I stay, there can be no party. I must be out there in the night, staying vigilant. Wherever a party needs to be saved, I’m there. Wherever there are masks, wherever there’s tomfoolery and joy, I’m there. But sometimes I’m not because I’m out in the night, staying vigilant. Watching. Lurking. Running. Jumping. Hurtling. Sleeping. No, I can’t sleep. You sleep. I’m awake. I don’t sleep. I don’t blink. Am I bird? No. I’m a bat. I am Batman. Or am I? Yes, I am Batman. 

Batman: Happy Halloween. *smoke bomb*

It was a simple question, Bruce.