Basically, how they were treating students. The school was operating under a lot of obvious nepotism, and was pretty openly bigoted. I was one of their primary targets. It ended with the state investigating, and then lawyers, and the school agreeing to pay my tuition to go elsewhere.about 1/4 of the staff turned over by the next year. Three years later the whole hierarchy was changed, and much of the rules, and policies, were changed.
At this point, 2 years later, the new superintendent called my dad and apologized for how I was treated. He then asked if it was possible to make amends, and for me to return to the school. He turned that down. To this day (30 years later) kids still hear about the "out of control" period in the 90s that lead to the school being completely reformed. If people are interested I can elaborate on things that went on. For one, their most academically gifted student, by a long shot, was basically shunned because he is gay. The dude is probably a legit genius, and is a prodigal musician. He had the highest marks, and assessment scores, but that didn't matter, he was a dirty queer. The school was a place you could call Kafkaesque without there being a bit of exaggeration.