BMX made its Olympic debut in 2008, though the sport has largely remained on the periphery of the Games.
That, of course, is not to say that the BMX riders are not themselves deserving Olympians, and a new video from NBC on Friday showed just how skilled these riders are on their bikes.
In the video, two Olympic BMX riders swiftly maneuver above a Rio official who is lying down in a star-fish position. The riders bounce their bikes between his limbs and atop his head, jumping and spinning and coming dangerous close to hitting his face (or worse), all while never actually touching him.
Check it out for yourself:
It's nerve-wracking just to watch, sort of the bike equivalent of that old knife game you definitely never tried with your friends when your parents weren't home.