This one guy was in his 60s. Had strange behavioral problems, including unexplainable outbursts/abuse towards coworkers. The most disagreeable f***er I have ever met. Severe road rage. In some respects was the stereotype of the "male chauvinist pig" despite having a wife and 3 kids. Not ONE person in the workplace liked him. Seemed to have no understanding/insight into what everyone else thought of him. Was finally pulled into line by management after endless complaints about him, given an official warning and forced to take leave. Left the job soon after that as he was nearing pension eligibility and health problems started to get the better of him.