WHAT THE HELL IS WRONG WITH HIM.
maybe all this teacher wants is more interaction. u know how students can act all dead and eyes glazed over. this might be his way of getting interaction - though a wierd way.
if this person is otherwise a good teacher, i'd just put up with his shenanigans. after all, it's just a class. but, if u feel that u are being treated unfairly and will not pass the class for some reason or other (discrimination) - then i'd switch teachers if i could.