My brother is an opioid addict and his girlfriend is a horrible drunk and they met at rehab. She chased my brother with a knife like two weeks ago and my parents let her stay and I don’t fucking know why. Two days ago she hit my brother and was cursing him out (while black out drunk at 9 am) and when my mother tried to pull her off she attacked my 61 year old mom. I’ve had minimal interaction with this garbage but I hate her, for SOME REASON my brother is so determined to not be alone that he’s staying with her and I’m baffled. I’m going to my parents house tomorrow to visit my mother and I want to avoid thus cunt but I have a feeling she will be there even tho she got “kicked out.” What can I say to her to embarrass her and tear down her ego and reminder her that her behavior is beneath us and every other decent human being and get her the fuck out of our families lives FOREVER! Because this cannot continue. She’s bipolar and crazy and just an evil and toxic human and im this close to actually fucking strangling her if she gets in my face tomorrow. Please help