Saw my mum a while ago, and gave her the little book I showed you a few posts ago. She really likes it, but it obviously made her think back to the incident concerned. (Which was that when I was about 5 I took her button box to the sandpit, where I was making sand christmas puddings. I needed the buttons to function as the dried fruit.) So her reaction was pretty much as follows:
“Gosh, thank you, that is beautiful. How did you make it? …. Oooh, I was cross with you.”

This rendered me helpless with laughter for some time.