Just watched the video. Pretty funny, sounds a bit like Napoleon dynamite.
I think this has happened to the best of us in rc. One time I had my mini revo vxl in a tube slide at the park driving upside down. Turned a little to much and bam, it flew out of the tube slide and straight into my eye. Another time I was driving my rustler vxl and my friend told me to look at his car. I turned my head and watched his car without letting go of the throttle on my car. Next thing I heard was a slapping noise and his brother screaming in pain. I drove over the curb, through his neighbors yard, on the sidewalk, and straight into his shin. He is lucky he upgraded to an rpm bumper instead of the stock skid plate before he sold it to me.