He's got his gun out in two seconds, expression hard as he trains it to the other's forehead, growling,

"Put it down."

At point-blank range, there's no way he could possibly miss. With all these people around, though, Dean isn't exactly sure what kinda rep he wants as 'the guy who shot someone else in the face.'

"Yeah, you think you're real funny now, screwin' around with shit you don't understand." A tight smile on his face, Dean shakes his head. "Just give it back and I'll stop thinkin' about giving you another hole to breathe through."