Lyric discussion by Conchobear 

Blame it on the Tetons. Yeah, I need a scapegoat now. No my dog won't bite you, though it had the right to. You oughta give her credit 'cause she knows I would've let it happen.

I believe it's about blaming our mothers (Tetons=Breast, the nipple that fed you as a baby) for raising us how we are. We blame the world for what it made us into because it's easier to blame others instead of yourself. The dog part is saying that he would let the dog bite you and the dog knows that but still chooses to not bite. Just because the dog can doesn't mean it's going to. It's being responsible.

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