A human cannonball performing at a circus in Chile overshot his safety net and crashed into the crowd. According to one report, he hit a clown who was knocked to the ground, but not hurt.
The cannonball did guy survive, but was busted up pretty badly with a fractured chin and knees. The guy who operated the cannon took the blame for firing him into the air with too much pressure.
(You might want to preview it because the video has a weird, slow motion-type sound)