4x8Funny Pants Episode Summary Aired: Friday September 23, 2005
Squidward has had enough of SpongeBob's incessant laughter, so he tricks his neighbor into believing that SpongeBob has a laugh-related illness. According to the made-up disease, if SpongeBob laughs one more time in the next 24 hours, his laugh box will explode and he will never laugh or giggle again. For the rest of the day, SpongeBob fights every single urge to chuckle. The next morning, SpongeBob discovers that he has completely lost the ability to laugh. Now, utterly greif stricken, all SpongeBob can do is cry his eyes out.. Will SpongeBob ever regain the ability to laugh?