Answer:
Bullying
Bullying means threatening some one by force.It is more common in the high schools and middle schools.
Bullying is considered as a bad activity because it will affect the victim one.The individuals who are weaker are the victims of such activities.This leads to depression and anxiety. I have also experienced this activities and it was very hard for me. I know the pain of being bullied in the school. Therefore,this kinds of activities should be stopped.