My only two experiences with goats -
When I was a kid, a nearby neighbor had a billy goat he kept chained up in the back yard. We were always told to stay away from it because it was mean. One day it gored him in the gut, and he later died of an infection.
Years later, when I moved to the sticks here in PA, a work buddy decided it would be a good idea to get a goat to help keep the grass and shrubs down in his yard. One day, soon after, he came home and found said goat standing on the roof of his new mustang, the sheet metal looking like it had been in a bad hail storm. Said goat "went to live on a farm out in the country"...
Neither are probably good examples of well kept goats.
Larry