Have you heard of Planking? Well it has recently made it’s way to the US and I have seen many Facebook and twitter posts dedicated to this new fad. Check out this video for more information on this new fad. It may explain why you randomly see people laying down in random places.
You can also check out this site to get caught up on the basics of planking. http://en.wikipedia.org/wiki/Lying_down_game
My take on this new fad, I do planks all the time while exercising. I see this as a great way to get teens engaged in physical activity (insert sarcasm).