Chewbacca or Darth Vader?

So I was leaning back in my chair and rubbing my eyes at work as I am wont to do when I am problem solving something that doesn't make sense. As my eyes cleared I noticed that a ding in the ceiling tile above my head looks like either Chewbacca (the wood underneath is the same color and almost has eyes a nose and mouth) or Darth Vader (the shape look like his helmet). I just cracked up. Enough to where people came down the hall to figure out what was wrong with me. ><