After only a few months at a new job, one employee found herself in an awkward situation in a shared office. Her supervisor, who had just started the week before, had posted a “Do Not Disturb” ...

ROANOKE, Va. — Wlodek Filipczyk spends about 100 days out of the year traveling for business, and the walls of his cubicle show it: They’re lined with Do Not Disturb signs he’s collected from hotels ...