KAMPALA (Reuters) - A mine awareness team in Uganda were horrified to find an unexploded bomb being used as a bell when they visited a school to teach children how to spot bombs, a local newspaper reported. The Anti-Mine Network organisation saw teachers banging the bomb with stones to call children to lessons in the school in a rural area, the Daily Monitor said. "Its head was still active, which means that if it is hit by a stronger force, it would explode instantly and cause untold destruction in the area," Wilson Bwambale, coordinator of the organisation, told the newspaper.