Good idea guys, I'll help kill a few sheep - I hadn't realised there were quite so many of them!
@ Loftar, if they really do cause a problem with regard to lag, why don't you just remove them from the game? I don't mean nuke the area, just the sheep, don't you have some kind of dev delete button for objects? Lol, idk, I'd have just thought there was a way for you to remove them .......