According to www.urbandictionary.com (2011) another name for planking is Extreme Lying Down. Upon viewing the pictures, you can see that not only is it dumb, but it can also be dangerous, maybe even life threatening, if you're dumb enough to attempt some of these "planks". Did that man not think of the possibility of falling off of that McDonald's sign, or injuring himself or others who are already paranoid about flying on the plane, or maybe that the carnivorousness tiger might just get hungry and realize that there is live food just lying on his back? Planking is great for people who get bored easily and have friends willing to take pictures of them looking like retards (Retrieved from www.urbandictionary.com,2011). Even though planking can be insanely fun and adventurous, it can also be dangerous.
Here's a video I though was hilarious about how dumb some people can be while planking.