My favorite paragraph (emphasis added):
Should Your Gift Still Be Alive? The cat world is divided over the etiquette of presenting humans with the thoughtful gift of a recently disemboweled animal. Some believe that humans prefer these gifts already dead, while others maintain that humans enjoy a slowly expiring cricket or rodent just as much as we do, given their jumpy and playful movements in picking the creatures up after they've been presented. After much consideration of the human psyche, we recommend the following: Cold blooded animals (large insects, frogs, lizards, garden snakes and the occasional earthworm) should be presented dead, while warm blooded animals (birds,rodents, your neighbor's Pomeranian) are better still living. When you see the expression on your human's face, you'll know it's worth it.