I don't think he told her, his parents just found out, thats a shame about ure mother, problems ppl experience when takin drugs is usually other ppl telling them there opinion on it, and cuz you know its all shite you will get angry and try and defend it, or ridicule the opinion cuz of how blatently full of shit it is (Gateway theory), but the best thing to do in any argument of words is to stay calm when ppl are goin mad at u, this will get under there skin 10x more than yellin back at them with a counter argument, and when just one person is screaming, they'll begin to feel like a bit of a twat after a while, way I dealt with that problem was doin that and asking them how much they know about weed actually scientifically, not read from papers or jus plain hear say, but real medical papers that study its effects? the ansa will usually be no to which you can then offer a middle ground and ask them what they don't like about ganja, and shred it, but in a more matter of fact way than 'Hey mom get ure fuckin head out of papers' way. Good Luck with the next couple of weeks, ure gonna need a lot of ganj to keep chill, but just keep rememberin to stay calm as you said, 3 more years and ure gone seems like a long time, but it will come.