I am on holiday – in Mauritius, a tiny tropical island in the Indian Ocean. And when I go on holiday, I make ridiculous plans.  I told myself I’d start running again. I’d get up early every morning, slip out of bed without disturbing my wife and cross the road to the beach. It might be hard at first but I could jog along the compacted sand at the shoreline, the sun rising at my back. It would be good for me.