Yes Prep Southeast campus (charter school does 6th - 12th grade).

The school decided to experiment with separating the boys and the girls in 6th grade.

The result was the 6th grade boys started a secret fight club with money involved in the restrooms, and some high schoolers were managing it. It was found out after a boy’s head broke a sink.

The girls got very slightly better grades though.

Other than that, the usual also happened; corruption, fraud, teachers doing pedophilia and ephebofilia, etc.