If you look at the above images from your seat in front of the computer, Mr. Angry is on the left, and Mr.Calm is on the right.
But if you get up from your seat and move back a full 12 feet, Presto: they switch places!
The email I received with this image said this illusion was created by Phillippe G.Schyns and Aude Oliva of the University of Glasgow.
Perhaps we sometimes are not be seeing what's actually there?