Vanitas isn't a stranger to scuffles, but also his only child syndrome is showing in that he wasn't expecting Ventus to escalate that quick; he's used to there being some posturing and sizing up first. He's never been crammed in with a thousand other unsupervised kids in this way.

Which means suffice to say his hair is grabbed and his forehead smacks against the side of the bunk above and he's now dazed and pissed, grabbing Ventus's arm and kicking at him with a free leg and a hiss through gritted teeth, which is harder than it sounds because Ventus is a blanket ferret, but he's probably connecting.

Let go of his hair! What the fuck!