you know, I tend to forget River is supposed to be physically kickass because I've watched the Firefly eps a kajillion times and the movie like, twice (it kinda depresses me.) Yeah, didn't buy her killing machine schtick _at all_ once it moved on from brain-killing. Because, TINY, yes. Unless she's moving at incredible speed, the laws of physics only allow her to exert so much force.

:idly ponders length of lever, location of immovable point re shifting Joss's libido: