OVID, Mich (WQTX)  A Clinton County school went into ‘lockdown’ mode Thursday morning following two separate incidents.  Officials at North Community Center in Ovid locked-down the school for about an hour after a student got upset and caused a disturbance. Police were then called to the scene. Meantime—at the opposite end of the building—there was a report of a student with a gun.  It was later determined to be a toy gun—both students were removed from the school.