When I was in high school, people used to do it all the time. One time the bus driver decided to take 'action', and he stopped the bus. All the kids threw their bags of weed out the window, and this stupid girl was getting paranoid and started to ask me and my friend if she could sit where we were. We declined. The cops came, and the cop came on board the bus. He looked around and asked questions... but he didn't have enough evidence to do anything. So the cops just left... lol. I think that's a stupid way to smoke. Why smoke on a bus when you can smoke before you get on the bus? Just wake up earlier, and bake! It's easy. Or when you get a car, you could always just smoke on the way to school while you're driving in YOUR car. I always found it really retarded when people smoked on the bus. Also, people used to do it when I was in middle school, too. Crazy kids.