For some years, I worked for a psychopath. It wasnt fun.
Common traits among those with this personality disorder include persistent antisocial behavior, impaired empathy and remorse, and disinhibited and egotistical conduct. This guy had all those, and then some.
He bullied us constantly. Hed throw his typewriter at people. When computers took over, hed throw them too. He smashed a dozen keyboards in half as many years, piling the wreckage in the corner of his office. He would scream at new hires, increasing the volume until tears were induced.
The mans office was the most disgusting place I have ever visited, and thats saying something.