There was a tragedy day before last in Mississippi. Some nutjob waltzed into his employers facility, Lockheed Martin, a massive corporate entity, and began blasting away. Six or so lost their lives and he killed himself. There is no doubting any of that tragedy, and its seriousness should never be minimized.
But it is very interesting to note he didn't begin blasting away until right after his employer forced him to attend a sensitivity training seminar.
If I ever owned a big company, the FIRST department I'd cut would be 'Human Resources.' All such people are the single biggest threat to sanity in the workplace. I'd replace them with a person(s) to facilitate payroll, a person(s) to handle the insurance and benefit liaison duties, and a person to handle miscellaneous things, such as accepting expense reports. But none of them would be allowed to intrude into the behavior of any employee.
Strong management can and would eliminate the problems quickly, and without lawyers or HR 'professionals.'