I've been learning about creature modding and castes by making some silly creatures, and I was wondering if it's possible to have a domestic animal in which one caste comes out hostile - I'm trying to make a third caste of cows called "mad cows", with the appropriate syndrome attack. I know that creatures born of tame animals come out tame also, and I've determined that this is true regardless of whether the baby animal has the [PET] tag or not. I've also determined that if any caste of an animal type has the [EVIL] tag, none of them will be available on embark (because dwarves don't have [USES_EVIL_ANIMALS] or whatever it is, I'm guessing). So, does anyone know of any way to make this happen? My current test fort just had its first mad cow born, but so far its [LARGE_PREDATOR], [LIKES_FIGHTING], and absence of [BENIGN] tags have had no effect.