"I see," McGonagall said, lips thinning. "Mr. Potter, as punishment for the aforementioned actions, fifty points will be docked from Gryffindor." The Gryffindor table gasped. "You will sit detentions each night from seven to nine until Christmas break, save those nights when you have other school obligations during those times. If a teacher finds you with dangerous contraband again, expect to be suspended or expelled. Do you understand?"