When I used to try and be the last off the train, but the first into the office complex (when I worked in an industrial estate in Marlow) I would often give myself shin splints.
Nonsense about walking fast below
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I really don't know what people used to think, seeing a 21 year old manboy in a cheap 90s suit walk past them at about 6 mph day after day.
There was another guy who also tried to be the first into the office complex (he worked in a different building in the same park), that I used to vie with, but he didn't give himself the extra difficulty of being the last off the train.
I used to silently jump for joy whenever I passed him, and weirdly he seemed to live very close to me, because he would also get the same tube as me on the way home, and then get off at the same station, and walk 3/4ers of the way to my parent's flat, before turning off.
Not had them for a while, but I think that's because I don't walk anywhere near that fast any more.