[The shocked noise does at least knock him out of quite so severe a mood, and he turns to find the culprit, free hand on his hip.]

I'm pretty sure it's against school rules to steal things from people, too.

[So it's not like this guy can talk. But honestly, Ferran does not give a single damn about interrupting anybody's studying in this one loop out of at least several dozen they've had to do so.]

—anyway, weren't you disrupting class earlier? You didn't strike me as the type who worries about rules.