C.K. Gunsalus – Inside Higher Ed:

Some difficult people are merely minor irritants: Others learn to avoid them as much as possible, and the overall working environment is not badly compromised. But a person who targets others, makes threats (direct or indirect), insists on his or her own way all the time, or has such a hair-trigger temper that colleagues walk on eggshells to avoid setting it off, can paralyze a department. In the worst cases, this conduct can create massive dysfunction as the department finds itself unable to hold meetings, make hiring decisions, recruit new members, or retain valued ones. When I first got involved in helping department heads cope with such people, my colleagues and I used concepts and approaches we gleaned from studies of bullies.
The bullies I have encountered in the academic environment come in many forms, from those who present themselves as victims, all the way to classic aggressors who rely on physical intimidation. In academe and other settings populated by “knowledge workers,” one often encounters other kinds of bullies as well, including “memo bullies” (who send regular missives to a long mailing list) and “insult bullies” (destructive verbal aggressors).

Jason Shephard discussed local bullying in last spring’s “The Fate of the Schools“.