[ If Keith had completed the swing, it's likely the punch would have landed. Shiro isn't remotely prepared for a violent response, and he ends up staring at the other paladin's fist for a long moment, startled. Startled, and being given yet another show of how much they need to talk about this. Keith hadn't heard him coming, must have been zoned out or something, and immediately assumed he was being attacked upon feeling the hand on his shoulder. While that instinct isn't bad to have, it's no good if Keith is constantly this out of it.

Shiro's gaze flits to Keith's face as he speaks, eyebrows knitting together again at the words. Won't happen again? It shouldn't have happened once. This is out of hand, and no, it won't happen again. Because they're solving it today, no matter what. They're going to talk to the other three about the noise levels, whether Keith wants to or not. It's not his choice at this point. ]

You can't guarantee that. Not if this lack of sleep continues to be a problem.

[ Pulling his hand back from the other paladin's shoulder, Shiro folds his arms over his chest and shakes his head. ]

It needs to be dealt with. You can't keep going like this. It's not good for the team, and it's not good for you.