It's a confusing world, isn't it? Class B to Class C then back to B again. You can't have any on you, then you can have some, providing you admit it on being questioned by the police. Arguably safer than nicotine and alcohol but still not legal? Confusing is the word. Spare a thought for film buffs who love categorising cinema offerings that now balk at the additional genres of `Marijuana Movies' and `Stoner Films'.