He'd given a speech. It was only natural: being Headmaster, he was technically required to give speeches for everything.
Though he'd gotten by without start- and end-of-term addresses for years, he could not avoid making some kind of public statement when he and the Triwizard contenders had boarded the ship for Hogwarts. Karkaroff had rattled off something pompous about the glory and honor of the school he'd called home most of his life, but even he hadn't liked the result. He'd had other things on his mind.
Now Karkaroff wished he'd spoken more carefully. He would have told Durmstrang goodbye.