Friday night in the common room, James and Sirius were sitting in front of the prefect, Jonah. They were trying to annoy him by making annoying sounds; clicking their tongues and clearing their throats.

Jonah, having enough of them, closed his text book and whomped them over their heads with it.
“OWW What was that for?” they yelled.
“Stop ANNOYING me! I am trying to do my homework,” he said fiercely.
“What homework is that? Gitfiguration?”
“No, if you must know, it is arithmancy.”
“Koh, the books is so heavy! Let’s not take that class,” they said to each other.