Tiny Tot Humour

What's is the first joke you remember telling as a child? I ask this question because I'm wearing these Spongebob Squarepants pyjamas I got for Christmas a couple years back. I remember that the show made me laughed my ass off. Keep it to PG-13 at most.

Here's mine:

George is sitting down to breakfast and asks Gracie to see if the morning paper is on the porch. She returns a moment later and cheerfully announces, "Yes, it's there

And here's another:

Two muffins are baking in the oven. One muffin turns and says to the other, "Boy, it's HOT in here!"

The other muffin looks back and says, "Ack! A talking muffin!"