And the great thing is you only have to do it once when they realize it isn’t worth the effort in the future.
They back down fast. They are weak and rule by intimidation, just like bullies. Bullies back down quickly when they get a punch in the face - in this case a verbal punch.
By the way, social media is a powerful weapon. Kids in middle and high school are connected in so many ways. Often times when things happen at school the students know in minutes and the school administration is left behind.