[Which - Edgeworth has no intention to defend himself - at least at first - and even if he did, well, that came suddenly enough and hard enough that it catches him totally off-guard. Edgeworth's not incapable of defending himself now, but he still doesn't know how to take a punch, and so he just stumbles back, blinking in shock before he trips over a patch of dirt and lands hard on his butt.
[action]
That really hurt.]