How about this scenario? This one will likely be a little more difficult to come to a decision.
You are a superhero. You are up against a villain who has, for the moment, disabled your powers. He has an explosive device capable of destroying an entire city apartment district. He decides that he will not destroy the district, on one condition... You must kill a child, an innocent child.
If you choose not to do it, he will detonate the device, killing thousands of people. He has you on a live feed airing on every television within the city and outlying towns. Either way, you live as a murderer, the blood on your hands. Would you kill the child, in order to save thousands of hard-working, contributing members of society? Or would you save face, and spare the child?