There was an instance last year of an older building on King Street (485 King Street West) in which several bricks in the front facade were clearly working themselves loose at the top of the building - week by week they were protruding increasingly - easily visible. After an inspection by the city (arranged through Jen in Adam's office) a work order was issued, and the facade was repaired. At some point, without the repairs, they would have come down on the King Street sidewalk. Now whether a few bricks at the top would have caused the entire building, or even the front wall to collapse I would doubt, but definitely, without the intervention from the city, this building was about to shed some bricks.