Not pure, but blameless. Read up on animal psychology. It's quite interesting actually. They run on instincts, you're trying to apply human characteristics on them. Why? For example, many owners want their dogs to "kiss" them, but they don't know the meaning of the word kiss because it doesn't exist in their world. When a dog licks you or a fellow dog it's because when they are pups that's how they would make the mother regurgitate her food so they could eat. It's fascinating. Humans and animals are very different and you should not make the mistake of confusing that.
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