Crap like that was common in the NJ high school that I went to during the late 1960’s, except that it was black versus white. Often weapons were used. It was also not unusual to see blood on the floors of the hall ways. Eventually the state brought in the State Police to patrol. They had two on each of the three floors for the remainder of the school year.
Talk about an environment that was conducive to learning!
I guess not many today saw the movie “Blackboard Jungle”.