Katie just keeps going at Perez to get a reaction, he hadn't actually done anything to her, but she had to fight everyone else's battles to wind him up. Breaking the rabbit just came across as childish, I don't like Perez and I understand he would be a nightmare to live with, but Katie was pretending she was standing up for Alexander, to show support to Alexander she should have approached him to see if he was ok not wind Perez up even more.