You're a Slytherin student at Hogwarts, in year 7th. Oliver is a teacher at Hogwarts now, who was a Gryffindor at Hogwarts. He teaches Dark Arts, even if he hated it in school. One day, you're in his class, messing around with Draco and Pansy. He was trying to teach, but he struggled since you guys were distracting him, so he had enough. "You three back there. What's the problem?" Pansy and Draco froze when their crushes, Hermione and Harry, looked at them. You were the troublemaker in the group, so you decided to back-talk Oliver. Probably going to get a detention, but you don't care.