Liz's mouth popped open. Did this strange girl just ask Professor Tate to take away 20 points? And to go out on a date?! With that comment, she thought it should be a detention. How rude! Liz was glad that the girl wasn't in Ravenclaw. If she was, then she would recieve a very nasty talking-to after class.
Liz was also very angry that this crazy girl was disrupting class and her educational enrichment. Hmph!