This thread discusses the Content article:
Longboarding fight on the backburnerThe surgeon that took McKensie into emergency surgery, drained his blood clots and screwed his skull back together. He said that judging by the injuries, McKensie was going between 35 and 40 miles per hour, something even McKensie says was dangerous. Apparently the public fool system never taught the kid that mass x velocity = kinetic energy! Or that an object in motion remains in motion until acted upon by an outside source, such as one's face impacting the asphalt.
The county should consider initiating a poster program called "This Month's Poster Child of Stupidity".