Smacked With A Tube

In this video some friends are messing around and some guy gets smacked with a tube on his back. In the movie the 40 Year Old Virgin they do this same thing but not on bare skin. When the guy gets hit with a tube it shatters on his back and leaves an imprint with an outline of blood and whatever material the tubing is made of. now we know that getting smacked with a tube of lighting is no fun.