He lacks the necessary ninja skills to pull this off.
Giving Yourself a Concussion at The Playground. That's going to leave a...
Next stop...the hospital for some stitches.
Looks like he's going to have to learn the hard way.
A bull knocks himself out. Thanks to the person who uploaded this one, I...
That's one way to knock the breath out of yourself.
Check out this painful clip somebody uploaded this morning!
For 5 bucks this guy will do a front flip for you.
And that ladies and gentlemen is how you own the uneven bars.