Plain Packaging Already Doesn't Work

You know what already comes in plain, nondescript packs that both adults and kids are still buying despite decades of trying to stop them from doing so?

Drugs.  Lots of illegal drugs.  Just about all of them. 

Oh, you might find a dealer or two with a sense of style and flair about how he packages up his wares, but on the whole you see only transparent plastic baggies, foil, or brown paper.  So where's the evidence that plain packs work?  There isn't any.  Even fuckwit himself, Simon Chrapman, admits it.  It's theory. It's unproven.  See for yourself:

I can keep reposting this all day, folks...