My dad has dementia but the type has not been confirmed yet. His behaviour is infuriating and disturbing. I have been up most of last night trying to explain to him he was in his own house and he had no recollection that his mum was dead. My dad is 70 and my mum is his carer, I don't live at home so its constant calls and its really getting to me and my mum. Can anyone give me advice? It would be much appreciated!