Fred,
If you feel that way, change schools. YOU are the paying customer, and you shouldn't need to give (or even have) a reason. This sort of thing happens all the time, and the school probably won't consider it a big deal, or shouldn't. Just say you're taking a short break, and leave it at that. If you run into them in the future, you don't need to justify yourself; you decided to change schools, that's all.