Someone I know recently lost a goat after only a snatched mouthful of Laurel, I'm considering pulling some up even though in theory the goats shouldn't get to it, but it's a good windbreak for the polytunnel, - but one escapee from the field having a wander round? It worries me but I need the windbreak.
My goats don't eat nettles in spring, but later make a bee line for the patch over the field, nowmuch reduced, they love it even more when it's starting to flower. I too love watching how they eat them, and how they eat thistle heads - amazing !
My book says docks are poisonous, but the goats eat them, I try not to let them get to too many at once.
If it's going to be meat I'd try and get a boer cross, first cross is getting much more common now.