9 Funny Pants

Squidward tricks SpongeBob into thinking he broke his "laugh box" after he is annoyed by his laughter one too many times. Concerned, SpongeBob attempts not to laugh for an entire day, and although he succeeds, he finds he cannot laugh anymore the next morning. He cries profusely until Squidward admits that he fooled him. Squidward then blows his laugh box out while laughing at his attempt to fool SpongeBob. SpongeBob gives half of his laugh box to Squidward, causing him to laugh like SpongeBob.