Let's be very patient with school administrators.
They are under tremendous pressure NOT to discipline students.
President Obama's government ordered all schools NOT to even suspend students for defiance of a teacher.
Some parents and activists said that schools were suspending too many students of certain ethnicities.
So even if administrators want to run a tight ship, they are super cautious, lest they anger the government or the activists or the parents or the civil rights lawyers (who will sue at the drop of a hat).