Get one of these babies for less than the price of 2 grams!
These were sold in the 70s and 80s, and still show up on auction sites. Here's a photo of a real one.
So you consider any amount of drug use to be irresponsible? Someone who has one or two drinks is just as irresponsible as someone who gets blackout drunk? Even if you don't consider alcohol to be a drug, surely this logic applies to other recreational psychoactive substances, no?