Hi Helen...Thank you for your help.
I appreciate that hiding things isn't an important factor but when my sister is at the end of her tether, these things infuriate her, and I can understand why she would be exasperated when her husband loses keys or hides things, she feels it's the final straw.
I've suggested that she goes for a walk (alone)when she feels things are getting tense, just to defuse the situation, which she does occasionally, but more often than not, he wants to go with her.
Yes, I have mentioned to her about finding a safe place to hide when he goes into a rage, she could have a bolt put on her bedroom door. Her worry would be, if he found the bolt, he could lock himself in, and in a confused state, didn't know how to unlock it. She seems to be more worried about him than her own safety, in his "good" moments he's very caring and she's deluded herself into thinking he's back to normal and won't do anything. However, the times he goes into a rage she's very upset and wants him taken away for good. He's very contrite after the situation ends and doesn't understand why she's so upset, when she tells him what he's done he doesn't believe her, he goes into another rage and calls her "a f*****g liar and other obscenities."
One measure I have taken is, I've sent an e-mail to the police asking for legal advice on this matter, explaining his illness and their ages. However, as yet, I haven't given any names, it's just a general inquiry. My sister wouldn't be very happy about my taking this step, but as I said before, I worry about her health and well-being and if this happened again, I would ring the police myself on her behalf.
Kind regards
Hunnyb22