My 35 year sister has severe mental health problems but refuses to get any help. She still lives with my parents who are both pensioners now.
Twice in the last month she has threatened to slap my mother in the face. After what I hear is a very minor disagreement.
I've had enough and genuinely fear for my parents as it's just them and her together in the house. They're both in their 60s and would not be able to overpower her if she did get violent. My mum has cried to me on the phone and my dad is scared to talk to my sister in case she does get violent.
I have told my parents they need to tell my sister to get help with her mental health or ask her to leave. However each time they say they need her leave, they dont act on it.
I am incredibly frustrated and genuinely fear for my parents safety. I am thinking about telling my parents that I won't see them again if they don't take some sort of action with my sister. It can't go on and is not a good environment for any of them. Do you think that is a good way to inspire them to take action?