Come with me now as we enter the story of a rogue vacuum cleaner on a mass-killing adventure.
Does this vacuum cleaner lose suction you ask? How often does it have to be emptied? As a matter of fact this vacuum cleaner NEVER has to be emptied, and when it sucks up dust it actually GAINS power. It even has the ability to fire state of the art Cleaning Pellets (TM) with enough power to physically DESTROY any messes.
In fact, the only time it needs to be emptied, if ever, is when it starts blowing people into dust and vacuuming them up. But what are the chances that THAT could ever happen?