Our former downstairs neighbor has an anti-chiuahua. It looks like one, weighs about 3 pounds, if that, and loves people. it doesn't do that "cower and shake" thing most others do.

The GF's sister has a little farm type house with ducks and chickens running loose. The GF went down there with the friend and the "Chi-wi" the other day to let it chase ducks. It loves this and will run itself to the point of exhaustion. Then it went after a chicken. The chicken ran behind a bush with the dog hot on it's tail. And instant later, the dog came streaking out followed very closely by the angry hen.

He was back after it a moment later. We've also pulled about 5 claws out of him, 3 from his face, from the times he's tried to "play" with the GF's cat. 16 pounds of seething anger and pointy bits.

Not a proverb, but "sometimes it's better to be lucky than good" comes to mind.

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I'm not evil.
An evil person would do the things I think up.