På 70-talet och början / mitten av 80-talet fanns det några fall av våld på arbetsplatsen i USA, och arbetsplatsen råkade vara det lokala postsystemet. Sedan dess har "gå post" varit en "sak" som referens.
The expression derives from a series of incidents from 1986 onward in which United States Postal Service (USPS) workers shot and killed managers, fellow workers, and members of the police or general public in acts of mass murder. Between 1970 and 1997, more than 40 people were killed by current or former employees in at least 20 incidents of workplace rage.