How about this. First, never sell. Second, grow plants as small as possible, and don't keep anything extra around. Also, be prepared to dispose of any plants completely very quickly. No plants mean no real evidence. And yes, the written law is sick. However, people are constantly breaking the law, and the vast majority of offenses are not seen/known or prosecuted. I've known people who became cops BEFORE they were cops, and they did at least as many illegal things as the average person. It seems that it's critical to not do or have any other types of illegal drugs if you have marijuana. The other stuff will really make busting you worthwhile.