So that I can finally post a screenshot, and to prove that I did it just in case something weird happens with the map and I have to beg McFly to fix it, I present to you Vvoid's House o' Sheep!
Anyone is welcome to come by and shear as much as they want, just please don't kill them or let them out. Or kill all of my cows for that matter. I have two separated just in case, but I like to leave 4-6 in the bigger pen to make it fairly easy to repopulate. Enticing animals all the way inside without some fucking skeleton killing them, the animals drowning or falling off a cliff, etc. is annoying as fuck, so please don't make me have to do it all over again. I've still got to drag in some pigs, but they don't really provide anything beyond food, which is abundantly available other ways, so I haven't made it a priority. I've got wheat growing up above too, so if you kill a couple of cows you can make them pop out babies for the next person to have some.
Just be considerate and leave it with the same or more than you started with is pretty much all I ask.