I find nothing funny about this disturbing video...

Would you be so willing to make fun of this person if he were your brother? :-/
I worked with developmentally challenged men and women for many years. I've seen the frustration and pain families go through. In my humble opinion, it is never appropriate to make light of such detrimental disabilities.
Remember, it is only by the grace of God or if you prefer, luck. That you are not the man in this video. Try being thankful and a little more compassionate. ::)
You could very well have an accident tomorrow and end up with a life altering disability.
I'm not mad about this posting. I'm just stunned that it was posted. :-[