A workplace bully mistakenly believes that hassling, nagging, micro-managing, and scolding others is the only way to "get things done." From the outside looking in, it's clear that these individuals, whether they are co-workers or managers, suffer from a distinct lack of imagination.
We teach our own kids to be nice to their classmates. Most of us do not intend to send our colleagues and staff home in tears or on the verge of ulcers. So, why do even the most "successful" business people develop reputations as bullies, bitches, or tyrants?