Ever want to know the answer to the age-old question "what happens when I attempt to launch a bottle rock from my behind?" 

Fear not, there are people who tried it. And got it on video. And then put it on YouTube.

Presented for your amusement this Friday is the Ultimate Fireworks Fail Compilation, a collection of the dumbest fire work launching moments of all-time.

 Are the injuries and accidental fires enough justification to limit the use of fireworks? Is this Darwinsim in action?