Minnesota has quite a few private schools and none of them are cheap. But this private high school is the most expensive in the state and the tuition is higher than most colleges.
I came across this video recently. It's a news report from KELO-TV's Eugenia Hartig in 1968 about the (then) new student made mural at Cleveland Elementary.
A school in South Carolina said that if their families cheered during graduation it could cost them. Literally. They'd be fined over a thousand dollars.