Below is how the bruising on my left leg manifested itself a couple of days after the accident, spreading out from an initially darker but much smaller one at the top of the thigh. Over the course of the next week, the bruising spread round to cover the inside of the leg, and then worked its waydown to the calf. And yes, it bloody well hurt.

In retrospect, I was so, so lucky that my legs are as strong as they are and that the left one took the brunt of the fall. Had my head hit the ground with similar force, I have a feeling that I would not be writing this now.