From a New York Times story by Sarah Mervosh headlined “Trained, Armed and Ready. To Teach Kindergarten.”:

RITTMAN, Ohio — Mandi, a kindergarten teacher in Ohio, had already done what she could to secure her classroom against a gunman.

She positioned a bookcase by the doorway, in case she needed a barricade. In an orange bucket, she kept district-issued emergency supplies: wasp spray, to aim at an attacker, and a tube sock, to hold a heavy object and hurl at an assailant.