"Trolley problem". What choice would you make if you had to save lives?
Briefly, the essence of the situation is described in Wikipedia: "A heavy unguided trolley is rushing along the rails. On its way there are five people tied to the rails by a mad philosopher. Fortunately, you can switch the arrow, and then the trolley will go on a different, siding. Unfortunately, there is one person on the siding, also tied to the tracks. What are your actions?".What would you do in this situation? And how would you justify your choice?