The sight of a robot handling pallets in a warehouse is nothing unusual. How dumbfounded would we be though if that robot flew off the handle and raved about not wanting to work all day long. Is it possible for machines to feel anger, fear or joy and recognize such emotions in people? We can consider the well-known feeling of fear to be the product of evolution. It is there to protect our species from dangers. When in fear, we either flee, look for a hiding place or disappear from the view of the people or objects that threaten us. Alternatively, we fight…