( it's a look he's plenty familiar with, and jason's mirroring it back to bruce even if most of it is covered by his own mask. doesn't go for the tone, because it's unnecessary. )

It doesn't matter if I tell you while you're here. You get that, don't you? You fuck off from here an' go home, and whatever you learned is just - gone. It's not gonna help you against your Superman. All it's gonna do is make you get obsessive over trying to find a way to weaken him here. Then you'll obsess over trying to retain that, even if it's fucking pointless.