An explorer is lost in the jungle, hacking his way through the trees and bushes, when abruptly he comes upon a clearing, and in the middle of the clearing is a tribe of bloodthirsty cannibalistic natives.

The explorer says "Oh crap, I'm screwed".

Suddenly, there is a bright light shining from the heavens, and a voice says "Quick, pick up that rock and bash the leader's head in".

So the explorer picks up a big rock, and bashes the lead native's head in.

And the heavenly voice says "Now you're screwed".

This ancedote from five of my past lives gives me great comfort whenever I contemplate the existence of Cow of Doom. Really.