Here's one small, yet rewarding and fun, way to fuck with The Man. Whenever you don't have any pot or anything illegal on you, and you're in public, smoke a cigarette, but tear off the filter and twist up the ends so it looks like a joint. And act all sly and surreptitious while you smoke it. I do that whenever possible, and have had many cops try to hassle me, which is great, because there's nothing they can do.

The more people who do this, obviously, the better, because if half the time a cop stops and hassles someone over a joint in public, it instead turns out to be a cigarette, then they might adjust their behavior, and hassle people less. Worst case, it does no good for the common pot smoker, but you have a little fun fucking with the cops.