Scrat
Wikisimpsons - The Simpsons Wiki
Scrat is a saber-toothed squirrel who stars in Ice Age, Ice Age 2: The Meltdown, and Ice Age 3: Dawn of the Dinosaurs and has been repeatedly tortured after trying to capture and break a simple little acorn.
He appears in Eternal Moonshine of the Simpson Mind when Willie kicks him for taking his acorn only to get the tables turned on him.