I do not have sheep. I've always wanted a dwarf/mini sheep or goats for self-sufficiency reasons(if I had my way we'd be a petting zoo already) but we have just a small space. There would be about 1/2 acre total. I have a neighbor who has a smaller lot than I do yet keeps a single full sized sheep. It grazes their bit of lawn and then is cooped up with the chickens! I would not want one sheep but probably 2 mini. What is the minimum space that would work for mini (and they are happy and healthy?) These would essentially end up as pets that baaaa instead of bark.