A Pal for Gary

The normally chipper and excitable SpongeBob undergoes several levels for this episode, to the point he outright scolds Gary for being mean to the monstrous Puffy Fluffy despite the fact he ignored the warning it hates other pets, to the point of punishing him after he saves his life. This even occurs when he saw the pet in its true form. Face it, he got what he deserved.

Example of:
Jerkass Ball