Imagine you are in a lifeboat with four others. You have enough food and water to keep only four people alive for the several weeks you expect to be adrift until you float into a shipping lane and can be rescued. You will definitely all perish if the five of you consume all the food and water. There is the suggestion that one of you should die so the other four may live. Would you volunteer to commit suicide? Why or why not? Would you vote to have one go overboard if you choose by straws? Would you vote to throw overboard the weakest and least healthy of the five?