Oh my Carol, that brought back memories of nights when Dad decided to "re-arrange" his bedroom and empty everying out of his wardrobe and chest of drawers. Didn't happen often - but he was usually "packing" to "rejoin his unit abroad"

Like yourself, I just put everything away again, and continued the next day as though nothing had happened.
I wish I could give you an answer my dear, but if this is where he is in his "memories", you can only continue to go the way you are going and divert him, as these things will happen from time to time as Dad "re-lives" his past memories. My heart goes out to you Carol, these times are so difficult for us.