This guy has the right idea. If some student that's technically stronger than you is being an annoying dick, you grab the your backpack that seems to weigh half as much as you (that might just be me), and snap their spine like a toothpick. Or you could have to deal with the ultimate question, one that I know all too well. "Should I just ignore the idiot and enjoy my can of Dr. Pepper, or do I show him not to mess with me, at the cost of a refreshing drink?" I obviously had to introduce the prick to the feeling of having your whole body covered in stickiness. And now I just sound like the scum of the Earth, but sometimes, you just gotta wipe that grin of their face like you're reformatting a Windows drive into a Mac one.