(1). A spectacular event in which an employee completely loses his or her marbles and goes all Michael Douglas on the office.
(2). A far less exciting event involving an embarrassingly loud rant about something or other by a disgruntled employee in the breakroom.
“It was crazy. One minute, Judy and I were talking about last night’s Survivor tribal council and the next minute – blagh! – she goes all postal about something Nick said to her about timesheets or whatever. Like that’s what I need at 9 a.m.!”