For a moment, Peter felt kind of bad. Was it just him, or was this guy extremely skittish? For a second he felt guilty for starting a conversation in the first place, until he realized that -- wait, he hadn't even started it. That just made things even more confusing, since why would the stranger have spoken up if he didn't want to talk?

Or maybe he had just been taken aback by Peter asking about his wounds so directly. He realized how that might come off as weird if someone didn't know about his profession, but was there really anything bad about expressing concern about someone else?

Though it was the explanation about the wounds themselves that boggled Peter the most. Invisible monsters? Peter was pretty sure that most of the monsters around here were pretty damn visible, so he was trying to figure out if this guy had run across something else (a creature that was impossible to see didn't sound that insane, after all) or if he was doubting his own sanity.

"What do you mean?" he asked with a frown as he idly started to gather some of the offered shampoo into his hands. "There are monsters out there that you can't see? I've never run into anything like that." The wounds didn't seem extremely serious or anything, but the guy may have just gotten off easy for all Peter knew.