heh. In high school, we had a math class where you worked at your own pace, many of us working in little carrels (desks with walls on the front and sides) along a wall.
I went really fast until I got to trig.
Then I wasted my time in class putting my book learning to practical usage, constructing mortars out of rubber bands and rulers and trying to shell people a couple of carrels down with high angle chalk and pencil fire (trying to hit ol' funked's baseball cap with round of .5mm graphite/Mechanical Pencil Super Quick). As you can see in the videos there, accuracy is always a problem. Rubber-band missile systems are inherently area-effect weapons (until someone develops a terminal-homing or sensor-fuzed ballpoint pen).