During the 2003 Daegu Subway fire disaster, a majority of passengers died as the train conductor ran away after plucking away the master key. 
Mwaka 2003 wakati wa maafa ya moto ya reli ya chini ya ardhi ya Daegu, idadi kubwa ya abiria walikufa wakati kondakta wa treni alikimbia baada ya kukwanyua ufunguo.