My Mum who is in mid to late stage of the disease is looked after by my Dad. This evening I had a call from their neighbours to say that Mum was wandering outside and was quite agitated and distressed. Dad was not home. It turns out he had gone to the bowling club to play a tie! He regularly goes out for up to 4 hours or so and locks Mum in the house. She doesn't usually look for (or maybe find) the keys and go out and he says she happily lets him go and doesn't seem to be upset when he returns, until this evening. I was kind of horrified to discover he has been doing this but I don't know if I am over-reacting or not so I would appreciate another perspective.