If that was fake, then where did the scissors go? more importantly, why didnt you hear them land anywhere? Also look at the way the muscle tissue hangs under the weight of the scissors. You don't always bleed with a puncture wound. I once had a whole in my leg about an inch deep that didn't bleed until I touched it.
I had my thumb stapled through the top of my thumbnail in 5th grade... No video though... My friend that stapled me had the same look as the scissor throwing kid. I think I wandered around for a bit like the stuck guy as well.