If neither thing is going to help, I'll take the one that at least feels like it's doing something. [Which...okay, maybe it isn't, but punching the box is cathartic. Catharsis counts as something, right?

It's not like having Yuto scowl at him for doing something violent is some kind of new experience for Shun, so he just frowns back at him. At least, he does until the box decides to tip over, which makes Shun tense up from the sudden motion. There's very few people who'd get away with landing on top of him in any situation without at least getting punched, but Yuto is one of them, and Shun, after a moment, drops his (still clenched, regardless of the lack of punching) fists down to the floor of the box with an annoyed hiss.]

Don't ask stupid questions. [And then, after another moment:] You seem fine.

[It doesn't count as asking a stupid question about whether Yuto is okay if he phrases it like a statement, clearly.]