I'm guessing that if you've never broken the law before, and you've just got a very small grow and don't sell, you shouldn't have much to worry about. Just go to a college campus and see how much pot there is, and notice that essentially nobody gets busted, because cops know that pot alone and when done by otherwise law-abiding citizens is nothing to be concerned about. But start selling it and everything changes, so that's why you should only grow a few or less plants for yourself and never sell. This makes me remember a dude in the dorms who was walking around with a compressed brick of shwagg.