Agree with that, goats are cool but they are a bit troublesome and mischevious; however, I would miss them if they were gone.
I got mine to clear several acres of invasive species in the woods behind my house. I had everything except kudzu (knock on wood, it's getting closer). Didn't want to disturb the ground/trees by running equipment down there and didn't want to spray anything, kids at play and a large collection of snakes, toads, frogs etc.
I move fence sections around and relocate the goats several times a year. They have done a great job. What was once a non-walkable tangle of undergrowth is like a picnic grove in most places and I have started planting pasture where the lawn/pasture has begun moving in.
Goats are pretty smart, when they are bored they appear to be studying the fence to figure a way out. Many times I come home from work to find goats outside the fence with no apparent escape route. They don't go anywhere, they are normally hanging out around the gate wanting to get back in for a drink of water to wash down everything they ate outside the fence (appear to have goat smiles on their faces).
As mentioned earlier, certain billy goats are just born crazy, don't turn your back on them. I had a very large alpine billy, horns suitable for mounting, full curl plus. Close to 4' at the shoulder and approx. 150 lbs. If you went in the pen with him he did not like you in "his" pen. Very impressive when he would stand up on his hind legs, bounce forward, then lower his head and charge. He never followed through on his bluff but it would get your attention. He would spin in circles slashing his head and kicking his back legs like a bronco.
IMHO, if you keep goats, keep the horns on them, can be a bit dangerous but provide a good place to grab hold if necessary. Otherwise, grabbing a goat that doesn't want to be grabbed can turn into a bit of a greased pig contest.
Q