I met the other two members of my team who had set off a few minutes before I did. They went off testing the system we're running at Heathrow while I set up a command post in the office there. This is starting to sound a bit like a military operation or something. Essentially, I was there to see whether my growing suspicion that the problem had gone away was as accurate as the growing suspicion from Monday that we had a huge problem. It turned out that we were really doing well.
What a good way to end a bloody difficult week, in which I'd missed a night's sleep and travelled a long way to prove a point. I was even nearer the better roads I could use for getting to my sister's house for dinner, which was exactly what I planned to do.
I arrived at my sister's in time to climb a ladder and install a lightbulb, as well as in time to have a chat with my now talkative niece. She's learning small-talk and heckling. Good times.