If Marc had been a shittier brother, he would've pointed out that the shit falling onto the ground -- shit that the cop and the Hound would no doubt realize were perfect for starting fucking fires, God damn it -- was coming from the guy he was trying to get to settle down, not from himself. But Leo was his brother, and he couldn't throw him under a bus like that.
Maybe -- though he doubted it'd work -- maybe he could talk some sense into him. A lost cause by this point, but worth a shot. Except what came out of his mouth wasn't anything that made sense, either. "Get your shit together!" he yelled at Leo, the first thing that came into his mind.