[ Gareki's expression sours, annoyed with this woman (as he is with everyone at the moment). He at least has the good grace not to backtalk a professor. At least not aggressively, anyway. ]

It's fine.

[ The book, obviously. But he's annoyed and it comes out gruff. He sighs and lets it snap closed, putting it on the table in front of himself. ]

Why only until you leave? It's Sunday... A weekend. I may have gotten here earlier than I should have, but it's not like I'm breaking a rule technically since third year and higher students are allowed in Hogsmeade on the weekends.