Bullying in school
I was always with a group of friends at school and I never got picked on but I sure saw a lot of other kids get pushed around. I didn't like to see it but there was nothing I could do to help. It usually happened while the teacher was not in the classroom. Its my guess they were more interested in sucking that last whiff of smoke from their cigarettes than they were in coming to class.
The bullys actually seemed to run the school.