Last week, I accused my upstairs neighbour of acquiring a Clocky alarm.
Following an unfortunate incident this morning that involved a wonky toaster being left unattended for longer then expected because I had trouble re-entering the building and the single piece of toast inside becoming decidedly coal-like, I would now like to retract my previous statement and conclude that my said upstairs neighbour probably also set off the smoke detector in their room and was running around in panicked attempts to get rid of all evidence before the fire alarm for the entire building went off.
Lesson learned: Never leave the toaster alone. Also, possibly get a new one.