Who needs a mouser when you have a miniature schnauzer?
The bad-ass skull-and-crossbones sweater intimidates the mice.
It's what Schnau-Dog has been bred for, and he's definitely game. Now that he's figured out that there are mice in the coop, he struts past it, on guard, ready to pounce.
And he's already earned his keep, if you know what I mean.