[ He's in trouble for standing around and watching this all happened. Clearly. As a Servant, it's his duty to interfere in these matters and yet here he is, just playing witness to them instead. ]

When you're in the corner, you're not allowed to speak. That's the purpose of a time out. [ Maybe once they stop acting like children, she won't have to wave around this sudden maturity!!!! ] So stand there and think about what you've done.

... Emiya, you can sit since you're bleeding. [ SHE'S NOT EVEN GOING TO HELP HIM WITH THAT. ]