Hahaha, some of those looked REALLY painful.
The invention of Parkour may have been the best thing ever...done well, it looks awesome, and done poorly, it makes for hilarious videos.
But who thought that putting TWO people on the horizontal bar at once could end in anything but catastrophe?
/edit: all right, finished watching all of it. Man, the stupid stuff we do when we're young. I kinda miss it now.