If you ask almost anyone if they know what a hard聽drug聽is, they鈥檒l nod enthusiastically. Ask them to define a聽hard vs a soft聽drug聽however and the nodding might stop.
鈥淏ath salts,鈥 鈥渧acuum fresheners鈥 and 鈥減lant food鈥 seem innocuous enough. You can pick then up at some gas stations, convenience stores, some garden supply shops, or order them on the Internet....