Re-Fail Therapy

I just spent the last 20 minutes watching people embarrass, injure and make fools out of themselves.
And whats more - I enjoyed even second of it.

What is it about human nature that takes pleasure in other peoples misfortune? In fact, sometimes when I'm feeling uninspired I'll indulge in what I like to call "re-fail therapy". Driven by the knowledge that within minutes of surfing through 100's of candid video footage I'll be in tears of laughter.
Here's one I found recently:


It's gotten so bad that I now know all most all of the fail videos on YouTube just by looking at the description. I feel like an addict.
But is it all just innocent viewing for the sake of entertainment? Or is it that we like to see other fail to make us feel better about our own life? Or something more sinister...

Either way lurking underneath all this is that undeniable feeling of fate, or often expressed as "what goes around comes around". I can't shake the feeling that the more I take pleasure in other peoples failures the more likely it is that the laws of nature will turn against me. We've all taken a tumble, we've all done mindless things, I guess the best I can do is make sure no cameras are present when it happens.