Harley "Puddin'!"

Joker "What is it, Harley? I've told you about interrupting me."

Harley "Why can't orphans play baseball? C'mon, guess!"

Joker "Why..."

Harley "They don't know where home is!"

Joker *starts smiling*

Harley "Wait... YA BETTER NOT TELL THIS JOKE TO B-MAN!"

Joker "I'm gunna tell the joke to Batman..."