Karen calls her mom immediately after school to let her know that she has detention, and no it's not a big deal, and she'll explain it over dinner, and could Azalea please pick her up at five o'clock since she's not going to be able to take the bus home.
Detention is in the French classroom today. Karen's not in French. She's in Spanish, and she's pulling a C right now. If anything, this makes the game where you try to guess the meanings of the French words on the wall even more fun, because she knows enough English to guess, but she doesn't know enough French to make it easy.
She takes a stab at her math homework for about five minutes, and gets stuck in the middle of a proof. She watches the clock. The teacher steps out of the classroom at 4:52, and then 5:00 comes and goes, and for the next ten minutes Karen thinks about saying something, but it occurs to her that she may have just gotten the time wrong and maybe it actually ends at 5:30 or 6:00 or something.
She takes out a different math assignment, one that already has "25/40" circled in red pen at the top of the page, and begins writing a story in the margin about a world where humans have all been killed by some primate-specific pathogen and have uploaded their consciousnesses into raccoon brains.