@MelkyWay I do feed my goats grain while I'm milking them. But only the milking and pregnant goats get it, and then they immediately get access to grass and hay afterwards. Haven't had a problem with that, so far. Some grain is ok!
I did lose a buck a couple years ago when he busted in to the chicken coop and ate way more chicken food than I realized. I've also force-fed goats baking soda and saved them after doing that. And now I have better fences!