musicals
When I was in 8th grade, the school play that year was West Side Story. It was a small school, K-12 totaled about 400 kids, so the casting was not very selective. I was a Shark.
I didn't understand some of the lyrics we were singing. Dad had to explain to me about the various racial and ethnic epithets. He also had to explain the term, "social disease" from the song "Officer Krupke."