[Tough luck, Waver. Apologizing for things that aren't his fault is a thing he would normally do anyway. The windows, though, are a fine way to distract him.]

I guess there are...! Having so much natural light in the building has excellent health benefits, you know, as well as boosting student moral. Come in!

[Pushing open the door, he starts leading Waver through the hallways to the kitchen. There's still something off about the way he moves, but he's trying harder, that much is obvious.]