Man Filmed While Playing in Traffic — Ending in Being Hit By a Truck

I just saw this video on YouTube and no nothing about the back story. It seems to be genuine, but shows a guy messing around in traffic as his friend films him — until he is hit by a truck.

This would make for rather poor evidence if the man hoped to go to court. Assumption of the risk can be a terrible thing.

What is amazing is not only the understated response of the friend and cameraman but his relative slow reaction to respond (his shadow shows him first examining the camera).

Does anyone what happened in this case?