Wow! I'm so glad that Astrid will be ok! This almost exact same thing happened to me and an old roommate's quaker. Reggie went into his cage which used to be Tuchie's cage and she didn't see him in there when she put her Quaker away. To her defense, she was legally blind. Reggie did a lot more damage to her Quaker, but he made it through. Accidents happen. Reggie never showed a single sign of aggressiveness toward her Quaker but he obviously didn't want to share a cage with him...