Humans are very emotional beings, and feel things much more strongly than most other creatures. Sometimes, they feel things a little too strongly.
I have never been happy with the way that magical constructs were presented in games. Admittedly, a large statue stomping the surrounding countryside is an impressive image. But the logic (or lack thereof) involved has always bothered me.
Inside a mad scientists laboratory the PCs find a short creature with smooth, oily and whale like skin. The head is faceless and smooth also. But hundreds of white eyes on the PCs from the fat belly of this creature. The PCs are about to kill it as it speaks to them in a feeble but intelligent voice, asking them to pour the contents of a green vial on it. Will they do so? And if so, what will happen?