One more question if you don't mind: We have a nice area in the pole barn - 12' x 32' that we are planning on using for our goat herd when we get one. (Herd meaning 2-3). We also have a nice sized run for them outside. Question: Do goats need to come and go at will, from barn to barnyard, or can I let them out in the morning, and back in again in the evening. Or if the weather is bad can they stay indoors 100% of the time? Once again - I want to get all the details in order before we get them... Thanks!