Hm well they just don't see then! [ He has a derpy smile on his face which you cannot see, but you can probably hear it in his voice regardless. ]

Oh! Well it's not really a problem here but your appearance. I have a special device I made back in my world that essentially cloaks the individuals true appearance. Can't have dragons and demons wandering around the school in full view, er, well at least until my students are used to them.