There is a student in my senior class who is really getting on my nerves. She is so rude, and every time I announce a quiz or a test, she starts complaining. She says that "No one cares about their work anymore, so why are you assigning it? Mrs. G (their old teacher, went on maternity leave) said we would do nothing in 2nd semester! She said we would just watch movies!" This is clearly, not true. Then, one of my students, who actually cares about learning, says "That's not true." Then this girl goes "Whoever said that, I hate you." I was SO MAD. I felt horrible for the other girl, I was close to breaking down. I made her leave the room and wrote her a referral to see the assistant principal. I feel absolutely horrible about this. Personally, I've had a rough week...and this girl just adds to it. How do you suggest I deal with her complaining in the future?