So if you’re worried about possibly having the Magic School Bus inside of you, look no further. These self-administered tests will safely tell you whether or not you have a vehicle carrying an elementary school class inside of you, and you’ll feel much more in control of your own personal health. Like Miss Frizzle says: “If you don’t look, you’ll never see. And what you don’t see can be very hard to find,” like a really tiny school bus driving around in your digestive tract! Good luck!