DAD: [on intercom] Katie, it's time to turn the light off and go to sleep.
K: [in room, through intercom] Ok.
D: Thank you. Good night.
K: Good night.
Five minutes transpires, with the light off.
K: [shouting through air from her room] MOM!!! I can't get my zipper down!
D: [to Mom] What zipper?
MOM: [to K, loud, through the air] What zipper?
K: On my backpack! I can't get my zipper down!
D: [loud] You don't need your backpack to go to sleep. Put the backpack down and go to sleep.
K: MOM, I can't get my zipper down!
D: Put the backpack down and go to sleep or I will take it away from you.
M: Put the backpack on the floor and go to sleep.
K: I think I got it!
K: I got the zipper down!
D: Good night.
Then we see her throwing it over her shoulder as if heading to school, then climbing in bed and trying to get comfortable with a backpack on her back. Alas, it must not have been comfortable.