Oh, sounds as if it's time for tough love to protect your mother, exactly as you would care for a child when they fall into the wrong company. If you could find a way to break the spell, i.e. keep them apart for two or three weeks then that might just do the trick. Otherwise you may well end up with two patients to look after. Your mum might well forget him altogether if she hasn't seen him for a couple of weeks. You are right it's so difficult, I never envisaged so many problems with mum and as soon as one problem was sorted, another would crop up. You can buy phones which allow 'permitted' calls through. I still have a guilt complex about installing this but I'm sure it saved mum a lot of grief. Sometimes, instead of sidestepping someone it's best just to be honest and tell this guy the truth, your mum is ill and can't cope with any extra hassle. I can't help thinking that if he were a true friend then he would be content to take your mum shopping or for lunch and not need to stay over, it seems as if he is taking advantage. The 'go away' message is probably better coming from your brother. Sorry if I am suspicious of him, you are the best judge as you see him regularly, Trust your instincts. Best wishes.