There's a very amusing article making the rounds that purports to be a scientific paper on the subject of how to make Sudafed from crystal meth. The idea is that because of the War on Drugs and the fact that the popular cold medication pseudoephedrine (Sudafed) can be used to synthesize methamphetamine, it has become really difficult and annoying to buy pseudoephedrine when you just want to use it to treat your cold. So, the authors claim, instead of buying Sudafed it is easier to buy crystal meth and do a bit of lab work to convert it to Sudafed. Using safe, readily available household chemicals, like chromium carbonyl.
I'm sure the article was meant as a comment on drug prohibition, but it occurs to me that it's pretty much exactly the same thing we see in real life with video "piracy." Efforts to prevent "piracy" have created so much inconvenience for non-pirate buyers, and have had so little effect on the availability of "pirated" video, that people end up choosing the "pirated" versions just because the non-"pirated" ones have become basically impossible to obtain and are getting steadily worse, while the "pirated" choices are getting easier and better. It's much the same point The Oatmeal made recently.