The blow is harsh on his jaw, pain blooming hot and angry across his mouth as he tastes blood, but he is bullheaded enough to not take that one without giving the guy a decent punch back. Which he does. He's got big hands, and a decent knuckle on him, so he decks the guy once across the face for that shit. A drip of blood dots Dean's collar from his lip, flowing freely, and he grabs for the gun hand before it can aim properly; he slams it on the floor, trying to get it dislodged from the guy's hand. It's too out in the open now; if he can pull his aim around, he can blast a hole in Sam's head, and that'd be sloppy.

He'd deserve it, but still.

Struggling is what he's good at.