JW let out an explosive hiss when his hair was mussed. He didn't really care about appearances like his cousin, but it was the fact that Fly was ruffling it in such a buddy buddy way that made him angry. They were NOT buddies! He swatted at the boy's head and grabbed for his wrist--being kind enough to mind his claws.

And of course he screamed at him as he did it. "GETOFFAMEBEFOREITHROWYOUIN!"