Batman: The Animated Series, Season One

Two years after the encounter with the Joker, Charlie is playing ball with his son when the phone rings; Charlie goes indoors to answer

Charlie:
Hello?

Joker:
Hello, Charlie.

Charlie:
Wrong number, pal. My name's Don.

Joker:
Oh, no, no, no, this is the right number, Charles Michael Collins.

Joker is looking over notes

Joker:
Oh, I don't know why you changed your name to Don Wallace, and moved your family to 12 Marigold Lane, Springdale, Ohio. One might think you were trying to skip out on our little deal. [Turns to Harley Quinn, who is trimming his hair] Leave the sideburns!

Charlie{intimidated}:
How did you find me?

Joker:
Oh, I never lost you, Chaz. You've become my hobby! [Laughs hysterically]