Remi Gaillard is a prankster.
He first came to national attention (that is, in France), when he dressed up as a Lorient football player at a cup final and disguised as a player, ran onto the field and took part in the celebrations with the team; holding the winners cup and even shaking hands with the French president. He's followed this up with many different pranks, many incurring the wrath of the authorities, and nearly all of which are AWESOME!
Here are a couple of my favourites (and there are heaps more here)