If this thing isn't being serious now, Dean doesn't want to see it serious later. He might end up with his neck snapped.

"No," He chokes out, clearing his throat and feeling his gun-arm shake a little. Dean drops it, narrowing his eyes at the yellow-eyed man. It's not Azazel. But it might be worse.

"Just go the fuck away before I summon a demon and ask it to kill your lily-white ass."