There's something of a dawning realization in Peter's eyes, an almost frantic, worried look when he considers the what-if's.

What if Stephen was right? And John? What if this was the bad thing?

"It's not like it was even--I didn't bleed out for him or anything, jeez! Okay, so let's pretend something bad did happen. What could this do, huh? A little bit of blood, or hair?"