a good twist would be, he steps back and gets ready to charge to knock it down, maybe hold that pose for like a sec and half, then get a hint of movement of him about to to charge, [but not yet] but then the wall just falls by its self.
you could make ver dramatic by making the wall fall, then make it crack [very snappy timing on the cracks] then the guy looks at the camera. the end.
:p

shameless plug: heres an animation i did yester day in class. what do u think
i love snappy motion!
https://smg.photobucket.com/albums/v2...t=bustGoBy.flv