Baldi's Basics in Education and Learning is an indie horror game in which players collect notebooks while avoiding the teacher Baldi, and its ordinary school sounds became part of its unsettling charm. The door opening noise comes from moving between classrooms and hallways in that game, a routine action that players quickly learn to associate with danger. Clips of the game spread widely on video platforms, and editors later reused its isolated sounds for parodies, gameplay edits and horror memes. It remains useful because it is short, instantly recognisable to fans and easy to drop into a scene change.