Dr. Cox: Hey, you. Where's my son?
Janitor: He's playing with the birds out on the ledge.
Carla: [gasps] What?!
Janitor: I'm kidding! Come on. He's green.
Dr. Cox: Come on.
Janitor: The little nipper got ahold of a paint gun when I was painting this line to the smokers' lounge. Thanks to him, I got halfway down.