My Zowie is five weeks pregnant. Suddenly she has begun this vicious fighting with her un-brother. I am not sure who is starting it. At first it seemed they were fighting over treats. A couple of days ago, I was trying to check her mouth (to see what she had), and he accidently bit me-really hard. I am punishing them by putting one in the cage-time out-then the other. Today, she was just staring at him and he was almost hiding from her. They kept it up for an hour. I am not sure how to punish them, especially because of her delicate condition. Do you think this is normal. They never have fought before, and neither would ever bite a person on purpose.