It's like the feeling I get when I see one of those faces with two sets of eyes (http://www.illusionspoint.com/wp-content/uploads/2010/09/funny-optical-illusion

It's like the feeling I get when I see one of those faces with two sets of eyes (http://www.illusionspoint.com/wp-content/uploads/2010/09/funny-optical-illusion-8.jpg http://www.illusionspoint.com/wp-content/uploads/2010/09/fun...).