Photo-Illustration: Vulture “Have any of you ever encountered an obstacle that you later understood to be an opportunity ?” the unnamed narrator of Avigayl Sharp’s Offseason, a raucous debut, asks her class. “Trauma can be an opportunity,” says a student, “to enact restorative justice.” Then she gives a second answer: It can also be an opportunity “to take a stand against the revolting and pernicious ‘Trauma Olympics.’” Sharp’s narrator quickly mounts a defense. “I would encourage us all to