I'm planning to spit out my gum at the teacher.
Why would you do that? Won't you get in trouble?
Why wouldn't I do that?
If you spit at someone it is considered extremely disrespectful. The teacher could kick you out of the class and the school could further punish your bad behavior.
I'm strong and I want to provoke the teacher and be removed. My parent will force me to change school.
This is a very bad idea, as it will cause you to be punished, but won't convince your parents to switch schools. Even if you eventually succeed with your goal, you will be sent to a school for troubled students, which will be much worse than your current situation.