Best puncture ever. My rear tyre had felt soft on Thursday night. I pumped it up and it held all the (short) way home. External inspection at home gave no clues. I decided to see if it remained inflated overnight before dismantling.
It was still up in the am so I rode in without further checks. On the way home yesterday I started feeling the tell-tale bumps suggesting lost pressure. It was cold and dark and I'd had a hard day of it, but it wasn't raining/snowing and I was next to the local rugby club with it's well-lit car park and benches so pulled in to do what I should have done the previous day.
As I started work I felt good. I was already wearing a head torch and my bifocal cycling specs and I was warm and dry. I had a spare tube and pump. I inspected the tyre again just to be sure: still no signs of ingress. When I took the tube out I realised a section of it was kinked. I vaguely remembered that this tube seemed a little too big when fitting it (though it was marked as appropriate for the tyre). I hadn't realised that there was enough spare tube to kink inside the tyre though. Sure enough the kinked bit had split.
I checked very carefully the inside of the tyre and, finding nothing, put the new (actually old and previously punctured and repaired) tube in, pumped it up and set off happily.
I don't know exactly why I enjoyed the whole thing so much. But that afternoon I'd had to pursue an application at the employment tribunal which I had been apprehensive about for some time. The application was one which is sometimes (but rarely) successful, so I knew I was pushing against the current, but there was some merit in it and, if successful, it would have saved a good deal of time and costs. It went worse than I'd imagined, but not as bad as possible. After 2 hours my application was dismissed, but we didn't suffer any penalty. I'm glad I gave it a shot.
But I was gladder that it was done. I think that the relief of that being out of the way put me in a wonderful mood, such that even a puncture on a cold, dark ride home couldn't phase me.