 Fifth, there are situations—unfortunately not all of them thought experiments—where compliance with deontological norms will bring about disastrous consequences. To take a stock example of much current discussion, suppose that unless A violates the deontological duty not to torture an innocent person (B), ten, or a thousand, or a million other innocent people will die because of a hidden nuclear device. If A is forbidden by deontological morality from torturing B, many would regard that as a reductio ad absurdum of deontology.