First of all, your father’s idea is completely undesirable. Do you think, if Ji Ji really exposes this matter, will other schools be willing to accept you? Definitely not. No school leader would put a timer next to him. Secondly, if you want to solve the problem, just unspoken rules. If you want to give gifts, be fair and don't try to trick the principal in any evil way. Don't forget that you are a student now and will always be the principal's subordinate. If you can't control him, don't go to extremes. It's best to tell your parents clearly what you are thinking and let them think of a solution. Anyone with a little bit of connections can handle this little matter. If it doesn't work, ask the class teacher for help. After all, you are his student, and it will be disgraceful on his face if you are really persuaded to quit. You are allies in terms of interests. You will both prosper and suffer. Finally, I advise you to study hard. Why don't you find a tutor for tutoring?