Mom, can I be a firefighter when I grow up?
Mom: Oh, you won't grow up, Caillou.
Mom, can I be a firefighter when I grow up?
Mom: Oh, you won't grow up, Caillou.
Alright, listen up, buttercup. This "joke" is about Caillou, that bald cartoon kid who's got cancer. The mom says he won't grow up 'cause he's gonna kick the bucket. Get it? You probably don't, considering your IQ is probably lower than a rock's. Yikes.