Just supposing for the sake of it that I happened to be walking too closely to the edge of the platform without realizing it and at that precise moment I inadvertently poked my elbow out two or three or maybe even three and a half centimeters (just enough) over the edge right when a speeding train decides to pass by swiftly onto the next destination without the slightest consideration about any angled obstruction that might be standing in the way making painful contact with splintering bones and other unpleasant ripping and crackling sounds, what then?