Your mom knows how much you hate the school principal. Today he made up a completely fake reason to give you detention, but when you got home you understood why he wanted you out of the house. Now he's threatened to expel you unless you stay and watch him
Your mom was one of the best teachers at the school; you and your douchebag bully both got assigned to her class this year. All he does is flirt with her in class and harass you. Today he finally went too far and got detention. You were so relieved until
