So Maybe's back. Apparently my brother wasn't allowed to have pets in his house. This also means we get to keep the crap-tastic humping bunny. My brother swears up and down that this is temporary. He'll take her back as soon as he finds a job. And an apartment that will let him have a dog. And roommates to help him pay for said apartment and that also love tiny snarky dogs.
It hasn't been so bad having her back, considering that now we don't really give a crap whether the dogs get along or not. All the training went down the tube the second Maybe crossed the threshold into single dog-hood. So we're just not even trying. We do shock the bejeezus out of her every time she attacks Buster in his cage (believe it or not, we were able to refrain from posting the $300 shock collars on eBay), and it's still satisfying, but frankly it's not a means to an end anymore. The means is her leaving and the end is us going back to having one (happy) dog and someone else having the other (happy) dog. I'll be making regular sacrifices at the altar until my brother meets aforementioned goals.