I'm not trying to be condescending here, but if your mother is as bad as you say she is, she's probably just getting enjoyment just knowing she's getting under your skin harassing you without having to do anything. It's kind of like the concept of don't feed the trololol or you'll just fuel them even more. If she knows this sort of thing riles you up, she's likely to keep doing it until you do something stupid, then put you in jail for it.