SpongeBob SquarePants, Season 4

SpongeBob:
[tearfully] Hi, Squidward.

Squidward:
SpongeBob, this infernal crying has to stop.

SpongeBob:
But Squidward, I...I broke my laugh box! [sprays a fountain of tears into his face]

Squidward:
[puts his tentacle hands over SpongeBob's eyes, stopping the tears] SpongeBob, there's no such thing as a laugh box! I made the whole thing up to get some peace from your insipid laughter!

SpongeBob:
You mean...my laugh box isn't broken? And it was a cruel lie that sent me into spiraling depression?

Squidward:
[taken aback by the revelation] Uhh, well it sounds pretty harsh when you put it that way, but yes.

SpongeBob:
I could laugh the whole time?

Squidward:
Yeah. [SpongeBob begins to laugh again; both laugh] You really fell for it.

SpongeBob:
I guess I did!

Squidward:
You even fell for the ol' thermometer in the boiling oil routine. [laughs]

SpongeBob:
[stops laughing] It's really not that funny, Squidward.

Squidward:
It's hilarious!

SpongeBob:
See ya later, Squidward. [goes into his house]

Squidward:
[still laughing] Break your laugh box! What a schlemiel. [his laughter turns to coughing as his sides started aching] yahhhh! [inhales deeply and lets out a long cough, thus losing his laughter, and falls flat to the ground, two paramedics come take him to the hospital]