The Art of Chastisement (And How Sirius Has a Lot to Learn)

Oneshot AU: When Harry's parents died, Remus and Sirius took over raising their best friends' child. After Harry crashes a Flying Ford Anglia into the Whomping Willow at the start of his second year, Remus and Sirius are forced to send a Howler highlighting their displeasure. Or, at least, that was the plan.