Just about the funniest economics lesson you'll ever see
though something like this, or this will be the sort of attack management tactics taken by the evil aliens that are taking over the world
you know the aliens from their remote bolt-holes in far off places where they think they might survive if discovered for what they are
they look just like people but they lack anything resembling a heart - just brains and balls and, err, lots and lots of really nasty weapons
in fact there are now dinner table discussions about how biologically sensible it would be to wipe out whole populations of as distantly related people as practical so that your descendants can be as Genghis Khan's - and fill the voids created. So to speak.