Thanks to everyone who has shared their learning experiences to help preventing others from sharing the same fate and to those who have provided advice on how to prevent or mitigate said fate if the situation comes up despite that.
Here are a couple of mishaps that have not yet been mentioned.
I will never again melt some butter to grease my springform cake tin which I had lined with baking paper in said tin. I heated the cake tin for a while on the stove. I thought it was a bit strange that the butter was taking so long to melt, but it was not until I smelt the fumes of overheated non-stick coating that I realised what had happened. I had lined the tin by putting baking paper over the bottom and locking it into place with the spring ring, this held the paper taut slightly above the bottom of the tin, thus creating a lovely insulating layer of air.
I will not cut with a chef's knife without a cutting board underneath, I got a lovely cut mark in my newly resurfaced table.
I will not leave a mug of bean cooking water (or other hot liquid) near the edge of the bench where a small person could reach it and pour scalding liquid all over his face, arm and chest (he was fine after a long lukewarm shower, but, it was quite a shock).
I will not turn on the stove elements of the stove my portable induction units sit on. (I read of someone else doing that on another forum, so I have taped all the stove knobs up in the off position with blue painters tape so that I, and especially my houseguests don't turn them on by mistake).