Crookshanks Attacks Scabbers Again

While working on their Astronomy homework in the Gryffindor common room, Ron Weasley's pet rat, Scabbers, is once again attacked by Hermione Granger's cat, Crookshanks. The commotion draws attention from the entire common room as Ron angrily pulls Scabbers out of Crookshanks' grasp and accuses Hermione of not controlling her pet.