"I, (Annoyed Grunt)-Bot", also known as "I, D'oh-Bot", is the ninth episode of the fifteenth season of the American animated television series The Simpsons. It originally aired on the Fox network in the United States on January 11, 2004. This episode represents a milestone in the history of the series as Snowball II is killed off, which, excluding the death of Homer's mother in Season 19's "Mona Leaves-a", is the closest thing to an actual Simpson family member actually being killed off as of Season 34. The primary plot is based on Richard Matheson's short story "Steel". Plot Bart is taunted by school bullies Nelson, Jimbo, Dolph and Kearney because he does not have a 10-speed bike as they do. In order to get Homer to buy him one, Bart has his current bike run over by Dr. Hibbert's Mercedes-Benz G500. Homer buys the 10-speed for Bart, but refuses to pay the small assembly fee and builds it himself. Bart is happy since it looks great and works perfectly at first, but it falls apart when he moons the bullies. Homer, wanting Bart to be proud of him, tries to build a battle robot for the show Robot Rumble. He fails to construct one, and instead assumes the identity of one, which Bart names "Chief Knock-a Homer". Unaware of Homer's ruse, Bart enters the robot in the Rumble. Meanwhile, Dr. Hibbert's car runs over and kills the Simpsons' cat Snowball II, shortly after crushing Bart's bike. A devastated Lisa recites a poem tearfully at the funeral, where Snowball II is buried next to Snowball I. Lisa adopts a ginger cat, which she names Snowball III, but he drowns in the fish tank. The next cat, Coltrane (Snowball IV), jumps out of a window after hearing Lisa play her saxophone. The owner of the cat sanctuary refuses to give Lisa any more cats, but the Crazy Cat Lady wanders past and throws a cat at Lisa that strongly resembles Snowball II. Although Lisa tries to shoo it off, worried that it will meet the same fate as the others, it survives a near miss on the street when Gil Gunderson it swerves to avoid hitting it while driving and crashes into a tree. Lisa decides to keep the cat, officially naming it Snowball V; however, the family will call it Snowball II in order to maintain the status quo. Principal Skinner