My father is 94 and in a care home with mild but increasing dementia - I had never really got on with him, not in a bad way but he has always irritated me and he is very selfish and self centred. After my DM died I had to take over responsibility for him and look after his affairs and now visit him every week, which he enjoys and looks forward to. I have serious health problems and so doing this is a real effort, both physically and emotionally, and he says he appreciates all that I do. My issue is that he drives me mad with his constant phone calls - his dementia means that he doesn't realise he has already called ten times that day - he has a mobile phone - and it is just driving me crazy. I don't always answer if I am busy, but I am ashamed to say that sometimes I put my phone on silent to have some peace. I am probably suffering from guilt, but not sure how to handle it - any suggestions?