"On the morning of the fourth day, Jamie tipped a switchblade out of his box of cornflakes.   “I think these promotional campaigns have really got out of hand,” he said, freezing with his hand on the milk carton. “One shiny free knife with every packet of cereal bought is not a good message to send out to the kiddies."

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This exchange marked the beginning of Mr. Malfoy's long campaign to have me removed from my post as headmaster of Hogwarts, and of mine to have him removed from his position as Lord Voldemort's Favorite Death Eater. My response prompted several further letters from Mr. Malfoy, but as they consisted mainly of opprobrious remarks on my sanity, parentage, and hygiene, their relevance to this commentary is remote.

— J. K. Rowling