So where should she be placed?
Either in part of a larger, specialised unit with staff able to deal with her (and properly paid) or in a smaller ‘homey’ place laid out like a normal house but with carers 24/7 and a smaller number of people with problems similar to hers.
Someone above mentioned her learned behaviour. I agree that some of this behaviour is learned, and, therefore, might be hard to treat, so I’m not sure what MH support would be appropriate, nor would work.
I’d like to also add that someone can have such MH problems and also act badly - that is choose to act in a certain way rather than the actions being a simple product of their PD. So, both can be true: she had a MH condition and is acting badly. Not differentiating means that the person feels ‘untouchable’ and could persist in such chosen behaviours.
As well as the person I know with an extreme PD, I also had contact with a person through a previous job whose behaviour was not good. However, this person did not have MH problems (confirmed by medical staff and SS). Differentiating between what’s beyond a person’s control and what’s a choice is important.