I have the most wonderful goat who has turned aggressive after kidding. She's akidding vet and has had many babies. Why the aggression toward us? She bit my son in the forehead when he leaned down to pet a baby. She went after my face twice. I'm shocked. We were not around for her previous kidding, as we just purchased these goats last fall. It's like Jeckyll and Hyde... LOL What should I do?