Most people only have two eyes. This is generally considered a good thing -- it's part of bilateral symmetry, those elements of nature that make sure you only have two arms and two legs. However, if somebody has three or more eyes, well... you want to avoid those people. Sometimes they're harmless but freaky, other times they're actively evil, and occasionally they represent spiritual enlightenment. Sometimes opening a "third eye" shows a level of Psychic Powers, but sometimes a creature will have many eyes so it can freak you the fuck out. Examples of Extra Eyes include: