A dozen questions were going through his head as he took in Stein's nonchalant response about the whole thing. "But- wait. Huh?" Give him a moment, he was normally more articulate than this. Although, he never really had a brain to mouth filter, that won't come until later.

"How did you survive something like that? Isn't that screw going straight through your brain?" Good job Steve, instead of helping the guy by giving out information or something, he was asking all these questions. But he hadn't met someone like this before.