When it comes to drugs like heroin, cocaine or ecstasy, for example, associating, of course, the notions of lack of addiction and potentially deadly. But when it comes to cannabis, things are less clear. The consumption of the drug, commonly known as hashish, of shit, grass or marijuana, is trivialized by some ... and demonized by others. What is it? Cannabis is the drug soft, "natural" and therefore harmless described by the younger? Or a drug which can be dangerously addicted?