In what world is it okay to come into someone’s home (who you barely know) and start following their kids around and telling them what they can and cannot do? u/YouDontKnowMyKid explains in a recent r/amitheasshole post that this is exactly a guest did in her home. A friend of OP’s sister, who she’d only met a few times, decided it was totally normal to follow OP’s son around and scold him for trying to use his own kitchen. When confronted, the woman defended herself by explaining that she’s a teacher. But OP wasn’t about to let someone try and parent her own kid, in her own home, teacher or otherwise.