Five mortally ill patients in need of organ transplants are in care at a hospital, all of whom will soon die. At the same time, a sixth man has a routine checkup at the same hospital. YOU, the surgeon realise that the only way of saving the five dying patients would be to slay the sixth and transplant into them his healthy organs. All patients are the same age, and of good moral standing. What do?

An out of control train is heading for 5 people. You can divert the train so that it hits 1 other person who would have been safe otherwise. All parties are innocent and are not to blame for the situation.