"Nothing big," he promises, fingers brushing over the cut on his forehead again as he notices her eyes drawn to it. It's stopped bleeding, thankfully, as far as he can tell. "I kind of did this to myself. Sort of."

He pauses, realizing he's neither making much sense or being entirely reassuring, and starts again. "There was an explosion. That's how I got the knock on my head. When we came to, I was afraid of letting the -- the Other Guy out, but I ... kind of couldn't."

Another pause. "You sort of ... you know. And trashed the rest of the machine we were working on. Then you collapsed. That's about it."