My mum has recent diagnosis. Some of the time she is more or less 'with it' but other times she believes she is staying in her sisters house who she thinks has only just died (but actually died 15 years ago). my dad is upset that she doesnt think she is at home and challenges her. usually she looks around, and goes, 'oh we are at home' and does not seem to be upset by this realisation. Other times she gets upset and angry and these are the times he is learning not to carry on challenging her. My question is this: seeing as most times she looks around, and realises it is her own home, and she is not upset by this realisation, is it ok to challenge her once, kindly? if she realises she is at home is that better and keeping her with us for longer? We know that if she says she really is at auntie bessies when challenged then we should go with that, but are we helping or harming to check if she can recognise the house? Your thoughts would be welcomed! thank you