I don't get it. Why does PETA kill so many dogs and cats? If they get 32m per year and can hang out at celebrity balls, what's in it for them? The only attempt at an explanation I saw was that they want to ensure the animals are killed more humanely than would otherwise be the case. Hard to believe anything they say, but what is the better explanation?   Why get such horrid PR when they could get such much pet-loving PR in the mainstream, quite cheaply? Is there some deeper philosophy involved?