Very sorry to hear your news, where I used to live, near the new forest, we had a lot of rhododendron always trimmed well back from the stock fencing, you can guess what I'm going to say next !! One large Goat with a long reach picked the tips off about 3_5 leaves, the first I knew about it was a sad looking Goat, within an hour or less of having done this , projectile vomiting, a sure sign,. luckily she was a tough old thing and pulled through but a youngster I had ate privet with fatal results, horrendous waiting for her to be put down . Hope you can find a companion for your other Goat soon