He was trying to put a positive spin on it; really, he would instead not get ash in his hair. Or gray hair in general, he is not ready to be an older man yet.

Yamamoto notices the blush; not knowing what caused it, he figures he better leave it alone. He could poke at it, but Gokudera just calmed down from earlier, so he will wait. Look, he is even keeping his hands to himself. "You think we'll run into people we'll have to meet with like that?"

He did not think about it being here, but he supposes it could happen. Or they could get unlucky, and people from home they aren't hoping to see could show up.