Sidney Fire Lt. Tony McLain, left, Lehman Catholic High School student Carly Caulfield, 17, daughter of Matt and Lynette of Piqua, and Sidney Police Resources Officer Mike McRill, right, are pictured in Lehman’s music room on Monday afternoon. McRill is demonstrating how to use a left over piece of a cut fire hose, from the Sidney Fire Department, as a tool to lock a door in the event of an active shooter situation.