"Okay. And you're disappointed?" Rikku raised an eyebrow curiously. "Last session I had a class about computer science, and one on Engineering for giant airships and stuff like that, and now I'm learning how to make better explosives. It's practical, and it's stuff I need. Okay, annoying teachers is just for the fun of it, but ..." She shrugged. "You can learn algebra from a book."