The document describes a scenario where a group of children are playing near two railway tracks, one operational and one disused. A train is approaching as the children play. The summarizer is asked to decide whether to divert the train to the disused track, saving most children but sacrificing the lone child playing there, or to let the train continue on its path. However, the document argues that diverting the train may not be the right decision and could endanger passengers, while the lone child on the disused track had made the safest choice by playing away from the operational track. No decision should be made hastily without considering all factors and potential consequences.