Okay, so, the keyboard on my laptop was looking pretty dirty, as keyboards are wont to do after a time, so I got a brilliant idea into my head: maybe spray some cleaning fluid on there and generally improve things.
So anyway, because of the obvious things that are wrong with that, I’ve not had a functional keyboard for a couple of days. I got by with the onscreen keyboard thing, but it was a hassle, not least because the malfunctioning physical keyboard was spitting out letters. But now I have disconnected the bad keyboard and have a usb keyboard deal to use for the typings. It isn’t the ideal situation I would have had if I had not been an idiot, but it is good to at least be functional again.