Bucky smiles, but there's no mistaking it for friendly. It's the type of grin he uses in fights, the challenge reading clear across his features, the spark of anger lingering behind his eyes. His patience has already been tested for the day, and the kid's playing jump rope with his one last nerve; they've never come to blows, never in earnest, never when Bucky's been in his right mind, but with the attitude pouring off Jason by the bucketful, all bets are off. Because at the end of the day, Bucky's not Steve Rogers.

"You really wanna play games with me, kid?" he asks, just loud enough for Jason to hear and no one else, getting right into his space. "Or do you just think I have moron stamped across my forehead?"