Recently, at a pot-centered radio program, someone offered me a “dab” of butane honey oil (BHO)—a concentrated form of cannabis.

“This stuff is soooooo clean!” he mused. “You have to try it.”

Never mind that what I was being offered was thick, black, and gooey, like the dude had just dipped a spoon into bike grease. “I made it myself,” he continued, proudly pushing the baggie of black gooeyness into my face. “You’ll love it!”