The bump makes him jump even more than it did her. He's coatless and stripped down to his t-shirt, with his bloodied outer shirt wrapped around his arm in lieu of bandages, and he's sweating and giggling and looking distinctly wild around the eyes. He turns on her just as angrily, shining the big torch in his hands at her face, relaxing just a little when he sees who it is. Not enough to stop him snapping right back at her though.
"I wasn't sneaking! You were the one doing the sneaking!"