Questions you don't wanna ask

Last night Duncan was supposed to be in his room doing homework and Kaes was supposed to be in her room not bothering him. Kaes came downstairs with Duncan's water bottle. I talked to her for a minute, because I'm her mom and I do things like that sometimes.

Then Duncan yelled out, "Forty-two seconds!"

Kaes gave me a wild, panicked look, said, "I gotta go," and ran upstairs, clutching his filled water bottle in her arms.

What was that? Blackmail? Indentured servitude? Slavery?

These are all questions I'm not asking.