You are the leader of a mountaineering expedition that is stranded in the wilderness. Your expedition includes a family of six that has a
genetically caused vitamin deficiency.
A few people's kidneys contain large amounts of this vitamin.
There is one such person in your party. The only way to save the lives of the six members of this family is to remove one of this man's kidneys so
that the necessary vitamins may be extracted from it. The man will not die if you do this, but his health will be compromised.
The man is opposed to this plan, but you have the power to do as you see fit.