The formal Broughton Rules of boxing. Preferably the whole thing, but if either party finds that disagreeable I would like to suggest the specific use of section VII.
"That no person is to hit his Adversary when he is down, or seize him by the ham, the breeches, or any part below the waist : a man on his knees to be reckoned down."
Oh, and if it could somehow be said in a way to emphasize the way old printing presses had a weird way of doing things like the tall Fs instead of Ss that'd be cool too, but that might be asking for too much.