I was working night shift at Ang Mo Kio Hospital. A patient has just finish urinating and I was going to empty the urinal in the toilet. The toilet was tucks away at a quiet corner. As I was turning to exit the toilet, the door creaked and I though I saw a dark shadow dashed across through the corner of my eye. Goosebumps immediately stand on my neck and arms. Was I imagining things or was t the fan that was oscillating overhead. Anyway I decided to leave quickly and try not to dwell on the matter. (Memory collected at the Public Libraries during the "irememberGhost stories" campaign from 27 Sep to 30 Nov 2012)