Yeah i agree with birdy momma. Positive reinforcement is always best. That goes for any animal. I have done rescue a better part of my life. You never get anywhere with scare tactics or yelling. I can tell by your posts you are frustrated and your Hahn's may sense that too and react more. I would take a step back and think about any changes, such as amount of time out of cage, routine, or even whether you are arguing with your girlfriend. I know when we raise our voice Hahnna will tell everyone to shut up.