To add to Marcus' post, Urinetown is a much smarter (and appropriate!) show than you'd guess from the title. Composer and co-lyricist Mark Hollmann has explained that what attracted him to the idea was how it reminded him of shows like Three Penny Opera and The Cradle Will Rock, and the structures and styles of those shows are very evident in Urientown. The idea of an environmentally-ravaged world where corporations have such an insane amount of power seemed like the perfect opportunity to write a politically and socially conscious show. Along those lines, the show takes a hilarious yet critical look at the state of the environment. Since a 20 year drought is what caused a water shortage so severe that even toilet water must be regulated, the show could definitely spark discussions on the importance of protecting the environment and how likely a Urinetown-type world could actually be. The show is also definitely appropriate for high school students and their families. Provocative title aside, there's no vulgarity or sexual innuendo anywhere in the show. Urinetown's comedy extends far beyond toilet humor, as well; the lyrics and jokes are clever enough to appeal to adults, and clean enough for children younger than high school age. Good luck! It's a fun show that's critically acclaimed (it won three 2002 Tony Awards, including the ones for Best Book and Best Score), and it also has some interesting things to say. I hope your administrators allow you to do it!