He seems to grin widely at being called the magician, knowing full well what that meant- and thinks on the subject that Yu's going along. Kids do hate calculus, and considering he hated algebra and that wasn't even that hard, he can't imagine having more tests in calculus would do to someone.

"H-Hey, let's not go too overboard with things, partner. You don't want to try and kill them, just get 'em to stop acting like a bunch of brats."