Oh there is no point fighting with her. She is too dumb/insane/narcissistic to admit she's wrong about something.
One time she was going through chemo and she was running a fever of 38c but was refusing to go to the ER. After a couple hours I decided I needed to just force her. So I basically pushed her into the car and drove to the ER. Typical waits here are 10-15 hours but she was at 39c when I got her there, she was in a room and hooked to IV antibiotics within 5 minutes. She was on the brink of sepsis. She stayed in a quarantined unit for a week after that, I brought her food everyday and played board games with her. When I finally brought her home she told me that I never help her and that I'm not a good son. That's probably the closest I've come to killing someone.