Finally took off-line the Icy Box four disk external USB box I had been using for the last couple of years to keep a bunch of external disks as, well, ABOD. A 4TB red WD disk was so totally corrupted this morning that no utility could see even the partition map. The same thing had happened a few months ago and then I'd bought the red (supposedly 'nas, always on' drive) WD. So now I'm not sure I have recent backups of a lot of the stuff in that drive. Boo.
Given that I cannot spend money on that sort of thing at the moment, I'll be stuck without that external storage. Keep the drive in case I can rescue it at a later date but prospects are not good.
Other annoying (not tragic or disastrous but annoying nonetheless) things have happened today.