For reasons unknown, I got up at 6.30 this morning and went for a run. I think I was sleep running for the first 10 minutes. I did my usual route, which was much nicer for the lack of pedestrians and traffic. It was pouring with rain and very dark, though I discovered that what looks torrential from indoors is much less so when you're moving - even in slow motion. It's not often I roll out of bed and run. The trick is not to leave any room for sentient thought. An approach I'm considering applying to absolutely everything.
(Stats: 4.34 miles; 42.35 minutes; 9.48 minute/mile. And ready in plenty of time for work too. Result.)