Ron was always angry at Hermione because Crookshanks (her cat) was always chasing Scabbers! (Ron's rat). "Scabbers is always nearly scared to death!" Ron would always say when Crookshanks is around.

Ron, Harry, You, and Hermione are standing next to each other while Rom is arguing with Hermione how Crookshanks is always scaring Scabbers.

Ron is holding Scabbers in his hand, talking to him.

"Scabbers! You is smart, you is kind, you is important!"