I was thinking someone should write a story on the premise that we are living in a simulation, where 'glitches in the matrix' like déjà vu, coincidences, freak accidents, etc., are due to accidental arrangements of people corrupting the program... but then I realised someone already had. In El ángel exterminador (1962) a group of people are trapped in a single room (level) due to their accidental seating arrangement. They are freed when they unlock the same sequence. In Groundhog Day a similar thing happens where the protagonist is trapped replaying the same level, until he figures out the correct sequence of actions to pass it. I am sure there are others.