hi,
we keep goats & sheep together.
during the winter the goats are shut in.
but during spring & summer they run together,the goats have access to a shelter at all times & only the rams use the shelters when its raining..
my sheep are scared of the goats,so at feed time i call the goats in,shut them in feed them then feed the sheep.
had no probs at all keeping them together,but we do worm regularly.