I look at this from a scientific point of view: we need to do embarrassing, evil clinical trials some times, and here is a group of assholes ready to crush and snort the powderized tablets put in front of them given half a nostril and some time. I say, let 'em. I say put an array of needles with different color solutions in front of them and label only the side-effects and see how many they jam in their veins on the mere promise (as opposed to proof) of performance enhancement. I guaran-fucking-tee you'll have yourself a bunch of syringe porcupines before you can even start your stopwatch.

We've proven how strong their willpower is to resist a) cheating and b) drugs that make them huge, man. If they're that weak-willed, they can't possibly cobble together lawyers in time to sue us before the scales grow over their brain.