A bell sounds, and students tumble out of rooms and into the gray corridors of George Washington High School. Eight a.m. lethargy has given way to the Brownian motion of the day’s first passing period. A tall boy beside me wraps his arms around a small, pretty girl, backpack and all, picking her up from behind and twirling her roughly. The girl tucks in her feet, tilts back her head, and shrieks giddily, “Yo, who the fuck is this? Who the fuck is grabbin’ me?” A male teacher with a buzz cut and the build of a wrestler…