What would you do if you come face to face against Batman in a dark alley?

What would you do if you come face to face against Batman in a dark alley?

Maybe he is going to smash your head into the wall where your teeth, nose would be broken or he is just going to ignore you.

Inspired by @Toad-1 's question.
What would you do if you come face to face against Batman in a dark alley?
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