A bunch of kids are building a half pipe when on of them asks for a hammer and a buddy tosses it to him knocking him in the head and creating a massive bump.

Notre Dame baseball pitcher Wade Korpi takes a line drive off the head. The radar gun picked it up off the bat at 100mph.

Routine flight training goes wrong during a touch-and-go flight pattern.

These kids build an obstacle course on their driveway and this dude takes a nasty looking fall trying to beat the record time.

Motocross rider Mike Alessi crashes on the first lap after ski jump at Red Bud in Michigan. He ends up getting run over by several oncoming bikers.