You may be great at Assassin's Creedbut I bet most of your parkour skills are no better than YouTuber Wheezy Waiter. He demonstrates the majestic elegance of a human body in motion while spoofing the Assassin's Creed parkour in which devonsupertramp dresses as the video game hero and dives off buildings.
Wheezy Waiter pulls off what could be called the everyman parkour in which he spends more time on the ground and dodging his own uncoordinated limbs than leaping over anything. It's a thing of beauty.