Harvey is many things, but he's not a fool; he knows Harrison doesn't fight fair:
As you can see from this clip, it was intended that the scene involve some whip-and-sword play. I've heard that Harrison was under the weather (really, doesn't it show?), and it was clear that he wasn't up to filming, so they just did a little bit and quit. The whip work wound up on the cutting room floor; credit for one of the biggest laughs in the movie belongs to the guy doing the editing.

As you can see from this clip, it was intended that the scene involve some whip-and-sword play. I've heard that Harrison was under the weather (really, doesn't it show?), and it was clear that he wasn't up to filming, so they just did a little bit and quit. The whip work wound up on the cutting room floor; credit for one of the biggest laughs in the movie belongs to the guy doing the editing.
