Knock Knock, more thereof

Gman & Princess were telling rapid fire Knock-Knock jokes in the back seat. Really bad ones. Literally a dozen+ of them. Somewhere in the middle:

Princess: Knock Knock
Gman: Who's there?
Pr: Bell
(silence)
Pr (frustrated voice): A bell, like "ring the bell"
Gman (excitedly yells): DING DING DING!

Of course, Mommy laughing at that one made it get repeated 3 more times.