An explorer in the deepest Amazon suddenly finds himself surrounded by a bloodthirsty group of natives. Upon surveying his situation, he says quietly to himself, "I'm done for."

There is a ray of light from the sky and a voice booms out: "No you're NOT! Pick up that stone in front of you and hit the chief on the head!"

So the explorer picks up the stone and proceeds to kill the chief. He is breathing heavily while standing above the lifeless body. Surrounding him are the 100 native warriors with a look of shock on their faces.

The voice booms out again: "Okay... NOW you're done for!"