According to the Belgian newspaper nieuwsblad.be, after failed attempts to settle the classroom, the teacher asked how many of his students watched HBO's Game of Thrones. When a majority of the kids raised their hands, he reportedly dropped this bomb on them:

"Well, I've read all the books. If there is too much noise, I will write the names of the dead on the board."

That's right. This international hero threatened to reveal everyone who will die in the upcoming fourth season (and beyond) of the fantasy series.

"[The names of the dead] are enough to fill the whole year and I can even describe how they die," he added chillingly.