This Situation Calls For A Philosopher!

It's often said that moral philosophers are divorced from real ethical concerns, spending their time discussing pointless issues such as trolley problems (bibliography here). In fact, it seems that these cases aren't that far from real life... Last week a runaway train travelled four miles through London's underground network, causing passenger trains to be diverted. Thankfully no one was stuck on the track and, obviously, a fat man on a bridge was unlikely, given that the train was underground. Nonetheless, I hope someone had a philosopher's phone number in case.