[o-oops, he pauses to get a grip on the seat, eyes briefly widening before he blows out a breath]

I - yeah, I was thinking about it. They have to do a lot of adjustments when you get a full prosthetic - uh, programming, things like that. [he lifts his hand in front of his face] Had my hand like this 'cause I couldn't see it without my glasses, but I was in a mood - and the moment I thought about punching something, it twitched and hit me in the face.

[he shrugs and drops his hand]