The document presents a scenario where children are playing near train tracks, with most on an active track and one on a disused track. If a train were to come, one could divert it to the disused track saving most children but sacrificing the lone child, or let it continue its path. Reflecting on this dilemma, the document notes that diverting the train could endanger passengers and the lone child made the safer choice already by playing away from the active track. It cautions that hasty decisions are not always right and mistakes will be made, so proper consideration is needed.