[Scott feels slightly bad when Yusuke says that, because uggh he's fine being an asshole but not too much? He rubs the back of his head, and although he doesn't really apologize, he lets out a small sigh that's a little contrite.]

Hey man, I'll help out.

[...] And if we can't find anyone by retracing your steps, we can ask over the Charms or whatever to see if anyone else is affected by something weird.