A couple of times in the game it's happened that a civilian manages to climb up on the rooftops. Don't ask me how. Usually after a minute or so they remember they're not really supposed to be there and jump back down. The first time I encountered one, I thought: wouldn't it be funn-- I mean, tragic if they attracted the archers' attention?
(I hope the gesture in the last panel is clear enough. It's supposed to be a "thank you" salute. It's a bit hard to depict in a still image.)