Five people are tied up on the tram tracks...and there’s a tram heading straight for them! You can pull a lever to divert the course of the tram, but if you do that, it’ll go onto another track that also has someone tied up on it. So you either actively choose to kill one person, or passively allow five people to be killed. What do you do?
So boycotts are fashionable again. I’ve been boycotting Starbucks since the early Noughties because of their aggressive business tactics; now I’m joined in that boycott by hordes of people who are unhappy because of the company’s attitude to tax. Now I know how Michaela Strachan felt when statement earrings came back into fashion: pleased, slightly righteous, and tempted to shout “I was doing it first!” a lot.