Thanks for this post go to  Systemic Txwong:

I saw this in New York’s Modern Art Museam. My sister and I couldn’t figure out why there was a depiction of a mutilated hand when touching the art piece.

Ninja security guards.  Can’t see them?  That’s because they’re ninjas.  Click above (or here) to see it bigger.  If you find anything like this though your daily perusals of the universe, send it on over to systemcomic at gmail dot com!