At first glance, both of these videos appear to be fails, but there may be more than meets the eye. Take the zipliner for instance: he clearly goes way too fast into that building, but he bounces out fast and no one seems alarmed. Maybe that's how this zip line is supposed to be ridden?
But what about the man unloading the quad off of the truck? He may not have done it gracefully, but he unloaded the quad nonetheless.