Parkour - it's definitely impressive and all, and it makes for some pretty cool chase scenes in movies and stuff, but there's something that's just not that... well, cool about it.
Maybe it's the rolling around on the floor after they do jumps? Or maybe I've just seen too many crap amateur videos of it online.
Either way, it appears Luke Mitrani and co agree. Here they take the X-TREME moves of the X-CITING urban sport to a whole different environment, with predictably hilarious consequences.
Personally I think the best thing about this are Mitrani's white-boy dreadlocks, and the god-awful shit-step soundtrack. See, that's another thing that's wrong with Parkour...