I don't smoke and don't grow. I am a cannabis advocate, however, and believe strongly in its legalization, both for medical and recreational use. I don't smoke because I'm in medical school right now (but on spring break this week!!!) and because I signed an ethics agreement upon entering school saying I wouldn't break any laws or use illegal substances, among other things. But I'm also one of those folks whose brain doesn't work to its best levels when high, and so even if I hadn't signed that agreement, I'd likely remain abstinent while in school. It's a fairly easy decision for me. If I'm ever tempted, I only have to ask myself if I would want a doctor who got high during the school term, and the answer for me is always "No."