[jimduk]

Good point, but it's also the case they forget being upset quickly. My father-in-law had dementia, and as he progressed I found it useful (for me) to interact with him as if he was like an X yr old child (without a medium/long term memory). e.g. If X was 6-8 we would talk about family, have a walk, point things out, express preferences, tell stories. If X was 3-4 we would talk about people and things in the room, discuss food, check he was comfortable, smile and be upbeat.

I had much better time with him like this, than seeing other families who were trying to be 'grown up' and have serious conversations. YMMV. Dementia is awful.