Flutterby™! :

In SFGate, there's an AP report that an anti-drug campaign backfired. Specifically, pencils with "Too Cool to Do Drugs" on them had the "Drugs" side towards the eraser, so the obvious phrases appeared as they were used. But, you know, that original phrase isn't exactly unambiguous, because, well, it might imply that doing drugs is just too cool. What, do these anti-drug people leave their brains at... wait, don't answer that.