He makes a noncommittal noise. "I don't make a very good punching bag. I fight back." He's still cold, but the prospect of a fight makes that matter a lot less than it had. He doesn't think Jason is about to start throwing punches right now but the potential for violence is a lot closer than it had been.

He turns to go, though he's certainly prepared if Jason loses his temper and decides that the library is a good place to have a fight.

"Look me up if you decide you want to talk. Or fight. I'm good for either."