Curiosity wrote:
I only even realised I was late when I was halfway over London Bridge, and was disturbed by the lack of other people there.
I've had that heart-jump more than a few times when the schools have been on holiday. I just don't keep up with half-terms since leaving yonks ago, so when all of a sudden there aren't any kids walking to school when I travel to work, I can't help but panic about being catastrophically late.
The best one, though, is when I managed to re-set my clock back an hour while checking the time when I woke up in the night. I've no idea how that happened, but needless to say, I spent the entire journey in a state of utter confusion about how quiet everything was.