It's second shift, and the building is nearly empty. Our offices have partial walls between us and the hall, so we can clearly hear anything in the hallway. I'm on a conference call on speakerphone.
There is someone having a long, loud cellphone call in the hall just over the wall from my desk. I've turned my speaker phone up as loud as it will go, and rather than wander off to the 95% of the building that is empty (and has full-height walls) she just gets louder.