Where we used to live there was a place a mile or so down the road that raised Mini-Donks. We called it “The Burrito Farm” :-D. I didn’t know the owners, and never had any interaction with their critters, but they were petite; I can’t imagine any of them weighed more than a couple hundred pounds, if that. It doesn’t task my imagination to picture them as a wrecker crew.
I’m guessing you meant the Goats, re “Stink”. I never really looked to determine gender, or reproductive status, but I suppose one or more of the dozen-or-so animals in their herd must have been intact males, 'cause they surely reeked. When they escaped, they did so in mass; you could smell them coming, and it was gag-worthy to be downwind. Other than that, they were amusing guests, and the resident Equines seemed to agree, as they announced their presence with apparent enthusiasm; “Oooho, They’re Heeere! Ahhahaha!” I never met the adult owners, but their kids were polite and pleasant (generally means pleasant parents), and always showed up with apologies, and to help with the goat-herding chores. Other neighbors must have been less tolerant however, as the people moved on after a few months, taking their Goats with them.
Friends of ours have several of the “Scottish Highlander” cattle. “Mini-cows”; I’m assuming they’re the same thing. They are cute and almost obnoxiously friendly, but I sorta gathered that they are Prima Donnas, and I wouldn’t count on them voluntarily eating less-than-ideal forages. That said, the standard “Black” steers (Black Angus? I couldn’t say.) we see around here seem to keep their pastures pretty well picked bare, so something like that might work for you. In any event, I’d eat one of them way before I got desperate enough to try Sheep, or (shudder) Goat. I do know people eat 'em, tho.