The grand jury report paints a picture of an elite boarding school -- tuition now costs $35,000 a year for day students and $52,000 for residents -- where rules were loose and relationships were informal: Many teachers live on campus. It was routine for them to take students out on errands or trips. In one alleged incident, a nude model failed to show up for one of the school's art classes -- so the teacher stepped in and modeled nude for the class, the report said.