After I graduate high school, in approximately 226 days, I'll be moving away from my home town, and going to college a few hours south. For the last 3 years I've known who my roommates are going to be, they're very good friends of mine, however as of late they have decided that they want to grow pot in our garage once we move into our apartment. They say that they will get medical growing cards (I live in California), and it will all be legit. But they also want to sell some on the side, which is certainly illegal. I don't really want to be a part of this, I mean I'm okay with them smoking it, I have nothing against weed, I'm just afraid they will get caught selling, and that it will end up getting me into serious legal trouble. Is there any logical arguments I can use to convince them to not grow, I mean since it will be indoors wouldn't it cost them more for the lights and electricity and everything then the profits they would be getting out of it? Also what sort of legal trouble do I stand to get myself into just for living with them? Any help would be appreciated.