User blog comment:FossilsDaDaDa/Fossy's Fanart Archives/@comment-5151799-20120120015348/@comment-3006892-20120120024059

Here's the idea: He, in a panicked attempt to defend himself, kind flung/slammed her against the wall, hoping to knock her out. After she crumbles to the ground Phineas backs up against the opposite wall, thinking he one. Then Jess looks up, wearing the expression in the above pic, then starts dragging herself across the floor. Why? Cuz she hurt herself too much to walk, but doesn't feel anything.

She's obviously not in her right mind, in case you can't tell.