Anons, I had a teacher in school that was a total asshole and he hated me from day one and I knew he would give me bad marks on purpose so I decided to flush the asshole before he could ruin my chances at a scholarship.
I used Visual Basics script to send a message from his cellphone to the principal's cellphone.
The message said: You have a very poor work ethic and I want you to be investigated for embezzlement of school funds.
The teacher disappeared the following week.