That's pretty cool! Kind of hard to imagine how it'd actually look, but I think I get it.

[ He wonders again now if he should do something like this himself... He'd like to be able to feel more useful too.

That line of thought gets cut off pretty quickly, though. Aw crap, those things really can measure how fast his heart is racing. Yikes... he guesses it's a good thing they've both confronted this already, or he might be learning some really uncomfortable facts about himself right now. ]

O-oh, yeah? Well, that sounds about right. [ God, he has no idea how to be smooth, but he's trying. ] ...Can you tell when it started?