Seriously...

While cleaning, I noticed this picture was about 2 inches away from the wall on the right side.

I pushed on it in an attempt to make it flat against the wall...no luck.
 

The previous photo really didn't show how far away picture was from the wall, so I decided to put my wrinkled, elephant claw like hand under the picture to help in your visualization. 

I looked behind the picture...and thought to myself, "Seriously?"  The culprit...a Lego spider handing, from the nail that also holds up the picture.

One guess of which boy decided that this was a good place for his spider to hang. What did I do?  Put the picture right back where it was...covering the spider.