UPDATE: The original video was deleted, and Leo Burnett insists that the substance pouring from above is only dust and water: 

Some days in the office are shit storm; it's just part of whichever career you choose. Today, feces literally flowed from the ceilings of the 15th floor in the Leo Burnett Building in Chicago

This is synonymous for what it's like to work in advertising. 

[via Deadspin]