With the scalding hot coffee, Joel is suddenly too distracted to continue the stare-down. With a hiss of pain - thank God it's not a really fresh pot, but it's still hot as hell - he starts ripping off his shirt to minimize contact with his skin.

He doesn't bother responding, just leaves - both to take care of the burns and to make sure he doesn't do something that'll get him in trouble, like snapping this asshole's neck like a twig.