Who the heck eats in the toilet? That must be rare even in Japan. In fact in Japan they have a tradition of wearing different slippers to the toilet in homes (I'm not sure how common a practice it is), suggesting they really recognise it as a potentially unclean place, which makes that dude even weirder. Hard to say who is more odd, the teacher or the MC. Maybe the teacher as she seems like a psycho, whereas the dude is a plain weirdo.