Within days of landing, the space invaders had acquired status by rolling their way to the top of the food chain, and ceased to encounter resistance. It was necessary, however, to gather up the overwhelmed humans now littering the landscape in paralyzed catatonia.
Being a somewhat neat species, and averse to rotting organisms drawing flies and unemployed social workers, the aliens released the Hoover droids which made quick work of the refuse.
However, the aliens were now confronted with heaps of useless humans bereft of purpose and were forced to devise a method of disposal........