Randomly in class you will be asked to deliver a letter to the principles office, makes sure to discreetly open it up and read it. This gives you the principles' computer password (pretty odd way of finding it, I know lul~). With password on hand, wait till after school, and after detention hours for the principle to go home (be aware this means front gate will be locked so you will have to find a alternative route to leave school), and go to the principle's office to snoop through their laptop for some dirt on them. Bring it up to them the next day at school and profit. ^.^ Literally, you have two choices here, and I actually got torn between the two, but I'll let you figure them out yourself. :3