A good example of the Society using the dehumanizing human-as-pest metaphor to make the wholesale slaughter of Armageddon something actually "happy":
*** w05 12/1 p. 6 Armageddon -- A Happy Beginning ***
Many wonder, however, why a God who is the very embodiment of love would inflict death and destruction on much of humankind. The situation might be compared to that of a pest-infested house. Would you not agree that a conscientious homeowner should safeguard the health and well-being of his family by exterminating the pests? ... The battle of Armageddon is actually one of the best things that could happen to us!