When we had been transferred to a new school, me and my sister were set to explore. We immediately climbed up till the seventh storey. We went into a very dark (and a bit creepy) room. Suddenly there was very loud bang and drilling sound. We were freaked out and immediately dashed back to the first floor. We also told many of our friends. To our surprise, they just laughed and said that it was some worker in the next door fixing something. Me and my sister just stared at each other and laughed at our silliness. (Memory collected at the Ang Mo Kio Public Library during "The Singapore Story: My Heart, My Hope, My home" campaign from 6 Sep to 31 Dec 2012)