Jokes

In the grand tradition started by her eldest cousin, Delphinium has suddenly become obsessed with jokes.  She was first introduced to them a few months ago, and now her passion for them knows no bounds.  The first brush with humor came in the form of the ultimate toddler joke invented by Uncle R. many years ago.  He analyzed the parts of jokes that elder niece enjoyed, and came up with something certain to amuse.  "Once there were two kitties walking along, and then one of the kitties fell on his butt!"  That's it.  That's the whole joke.  And it absolutely cracks them up.  The first time Delphinium heard it she laughed so hard she fell down.  Here are some other jokes she loves:

Knock knock
Who's there?
It's me a potato!

Knock knock
Who's there?
Ice
Ice who?
Ice cream!

Here are a couple of jokes she's made up after hearing some others:

Once there were two kitties walking along, and one kitty fell on a peanut!

Knock knock!
Who's there?
It's me a carrot!

Now imagine hearing these jokes (and more) for the entire duration of a two hour car trip.