As a kid I attended a private religious school for eight years. In the seventh grade, a new student joined our class.
Molly was – how shall I say this? – a "problem child." She smoked cigarettes, frequently cut class, cussed like a longshoreman and ran with a rough crowd. Our school was known for its strict discipline (not to mention intimidating nuns), and Molly's parents hoped it would provide the structure she needed.
It didn't work out that way.
After just a few months, Molly was gone. Even the nuns couldn't handle her. She was sent back to public school.