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Thanks all for the comments and words of encouragement, much appreciated!

Thanks for your further prompt for this in #11, I had forgotten I had started this and put it aside for further thought(s). I went down a few rabbit holes even though the "subject" was apparent after solving a few and admit to using Google (surprised "it" isn't included in ODQ) and I won't spoil this for anyone just seeing this challenge for the first time by giving away too much [just go straight to the first post and you'll miss the solutions and discussion(s)].
Again, bravo sir.

Thanks Ginge, “rabbit holes” indeed!
“It” may not be in the ODQ but it is quoted in an episode of Detectorists, a favourite of mine :-)