I read this thread with interest, as a colleague of mine, and his family, were actually embroiled in a legal dispute with a so-called friend of his mother's. As well as showing signs of dementia, she had other heart-related health issues, and had to have regular check-ups. This (male) "friend" would regularly cancel appointments on her behalf, and would arrive unannounced at her home and whisk her away for a "day out". Her family had made arrangements for her to be assessed for dementia, and this man did his utmost to sabotage these, too, saying that she was totally capable of making up her own mind as to whether or not she wanted to marry him! This was his goal, as he believed that she was sitting on a fortune (not true, in fact). He had a cohort, a woman who actually worked for Adult Services, who quite outrageously flouted all the rules. One week, whilst my colleague was on holiday, he had arranged for his mum to stay at a care home, as he wanted to ensure she was safe from this man. No one but the family knew where she was (how awful that they had to do this?). However, the man turned up there, saying he'd been told by the family that he could take her to London for the day. All lies, of course. Clearly, his cohort had managed to find out where she was, and had told him. Gross misconduct, in my eyes. Very sadly, the mother died at the end of February this year, so this man thankfully never got his way. He'd taken out legal proceedings against my colleague's family, saying that they were infringing her human rights, and falsely claiming she had dementia and so on and so on. Evil.