There is a small landing at the top of my building's staircase, rising above the 4th floor (where I live), that exits to the rooftop. The door to the roof is, understandably, alarmed; but unlike other buildings I've lived in, the landing itself is not monitored by some ear-splitting, motion-detected alarm. This affords a small, removed space that is detached from the usual doings of the building (not that there are many)...