When James started ranting Sirius was fully prepared the punch him one. That was always how they settled these things. But as he went on Sirius realized that he was dangerously close to... To... To fucking crying and he had to turn, to fucking run, something because he was about to lose it in the cooridor by the kitchen in front of James and that just couldn't happen.
"Shut up," he mumbled, not nesecarrily loud enough for James to hear.