Dug out the old turbo training thing that I acquired on a whim back in the olden days. Tried it once or twice, got bored, buried it at the back of the garage. Anyway, the archaelogical dig unearthed it from behind the Ikea furniture we're still to get rid of, along with a with a bike to attach to it. That bit, of course, is a plus.
The bike has a flat rear tyre. Pump that up. Looks good, I'm about to put the cap back on the valve when the innards of the valve eject themselves at some velocity through the open garage door. The tyre lets out a terminal sigh of despair. So do I. Start hunting a new inner tube, there must be a spare somewhere in the garage. There are lots of spares, just not for skinny tyres, except for one leaking one that I remember giving up trying to fix.
OK, I'll fix it. Go get the puncture repair kit out of my pannier. Get ready to deploy the glue. Squeeze. Squeeze. The glue has set. OK, praise be to Marathon Pluses, it's been a while. Move to plan b, somewhere in my bag of tools have some self-adhesive patches that I bought for those emergency quick fixes. Also some time ago. They're about as sticky as sandpaper now, but some bodging manages a seal that when pressed against the tube by many PSI may hold.
Finally, ready to go, I get on the bike. My this resistance lever control level is stiff. Push... snap.
Then, 45 sweaty minutes later, on a hook on the garage wall, I noticed a brand new skinny inner tube.