Anyway, to today's fettles, one (hopefully) successful, one unsuccessful. The successful one following the unsuccessful one.
I rode from Sarf Lunnon to Brighton with two socially distant chums. As we approached the foothills of Farthing Down I spied a stationary cyclist by the side of the road so stopped to ask if everything was OK. His chain had broken, so it wasn't and he had no tools so it even more wasn't. His riding partner rocked up and she too was tool-less. I explained what he needed was a Box of Doom and produced one from my bar bag. In it was a chain tool, a selection of short bits of chain and a selection of quick links. Having counted his sprockets (seven) I found an eight speed quick link. Punched out the broken link (a side plate had parted company with its rivet in a bent and interesting way) and fitted the quick link. It was a little hard to get the pins seated but a stamp on the pedals produced the relevant click and all seemed well. It passed the "hold the wheel in the air and twiddle the pedals test." The riders were both very grateful and he offered to drop some money in a charity box. He got on a pedaled, only for the quick link to part company. Arse. I guess it wasn't in quite properly. It was a KMC chain. Are they the ones that do two very slightly different width 8 speed chains?
Anyway, out with the Box of Doom again, punch out half a link and rivet in a complete link from my collection. Check for stiff links, check for going roundability and all was well. They kindly offered to wait until we'd gone before they set off. I suspect they were worried my fix was as reliable as the first.