You know how you're supposed to have someone watch you while you trip? That's because if you don't, you might end up stark naked, leaping from car to car in an apartment complex parking lot. Like this guy.
In case you're wondering, the description of the video (as provided by Google translate) is "Do not use drugs! Powders of shops 'household' - evil!" Which is a message we wholeheartedly endorse. We think.