I don't know what you're worried about; when my Grandad lived with us he had dementia and one night I forgot to set the alarm in his room which alerted me that he was leaving it. In the morning I woke up with a start and saw on the CCTV he wasn't in his room. I raced down the stairs terrified he'd gone out the front door but found him sat in my brand new armchair with his pj's round his ankles. As I started to say, "What are you doing?" I noticed a pyramid shape on the dining chair. As I stepped closer I realised he had done a turd on each dining chair and then gone to sit in the armchair. I didn't know whether to laugh or cry.