I agree with cmjoust,
Everything you describe sounds like LGD. Especially the rumping, and that I think can be your escape outlet. If you tend the goats (feed) daily, go and do your chores after a brief greeting to him. He can follow and investigate around the place while following you, just so long as he's not bothering you. When chores are done, try to entice him to rump, RUN around, slowly and make him rump like you described in your previous post. LGD love to rump with tremendous power, I can see the muscles in my 13 month old flexing when she's rumping full throttle and she has a lot of hair on top of them. After he's spent, you can feed him or give him a nice meaty bone to chew on for a good while. I think he'll go to sleep after that and wake up and patrol all night long while the sheep sleep. Good day.
Everything you describe sounds like LGD. Especially the rumping, and that I think can be your escape outlet. If you tend the goats (feed) daily, go and do your chores after a brief greeting to him. He can follow and investigate around the place while following you, just so long as he's not bothering you. When chores are done, try to entice him to rump, RUN around, slowly and make him rump like you described in your previous post. LGD love to rump with tremendous power, I can see the muscles in my 13 month old flexing when she's rumping full throttle and she has a lot of hair on top of them. After he's spent, you can feed him or give him a nice meaty bone to chew on for a good while. I think he'll go to sleep after that and wake up and patrol all night long while the sheep sleep. Good day.

I don't know what's out there, but once he gets started barking, he won't stop. He would bark non-stop for hours, and has. We have a neighbor close enough to us that with the leaves off the trees, the sound could carry and be heard by the neighbor. I worry (especially on cold nights) that she may not only complain about the noise, but complain to the authorities that we have a dog outside in the cold 24/7 (not understanding what a LGD is).
My husband asked me how to make him stop barking. Well, how should I know! I went to the bathroom window, opened it and, I didn't even have to yell, my voice carried (and so does the dogs!) and I said "That's enough Alex. Quiet now. Everything's okay." He shut up and I said "Good boy", and went back to bed. He barked one more time and has been quiet ever since! 

