I was involved once in a high school set on a converted military starship... a high school where the students could be human, but were most commonly alien (we only had one human character in our group... and one half-human). Players played either a student or a teacher. Or both, if they wished. With the school set on a starship, part of our "lessons" were to involve field-trips on various worlds. Though I'm still unable to RP, I'd like to see this particular high school scenario played. Since the one I was involved in before died before even the first "official" day of classes... liked the concept, would really like to play it all the way through.