The reaction from the guy taking the video pretty much sums it up. Don't worry, no one was seriously injured.
Let's begin with this: Diving into a crowd is stupid to begin with. What's MORE stupid? Not making sure there's an audience there first. Ouch!!!!!!!
You're probably familiar with parkour: the urban sport of jumping and flipping around obstacles and obstructions in a quick acrobatic fashion. This is NOT how you should do it.
I laugh out loud every time I see people try to “work” a microphone incorrectly. See how ordinary (and in one case, just plain...