A man is working at a switch that rotates a train bridge. It does this so that it can get out of the way if a boat comes through. The man is sitting by the switch, when he hears his son playing on the tracks. He was about to yell at him to get off, but a train cut him off. The man had to make a decision about what to do. What he did doesn't matter, but from a Philosophy standpoint, what should he have done?