In middle school it became "cool" for girls to randomly knee guys in the nuts. Yep. In front of teachers this happened, and no one ever got punished. Until one of my friends immediately hurled all over a girl who did this to him.... from the pain. He got suspended for 2 days from school. Lets just say his parents hired a lawyer the next day. Pantsing was the big fad when I was in middle school.