My first boss managed a gas station. He was good in most ways--efficient, fair, disciplined, ran a tight ship. Just one drawback.
He was racist.
I don't mean that he was insufficiently outraged by Dukes of Hazzard reruns. I mean that he used the N-word often and loudly. He resurrected other racist words that would have sent Bull Connor running for a thesaurus.
The truck driver who delivered our tankers of fuel every week was a black man, and they almost came to blows over this.
His comeuppance finally came when the corporate office hired a new third level supervisor who was a young black man out of business school.
That boss just could not take orders from a black man.
When he quit, he trashed the office and tore up every floppy (it was the 80's) disk in the office so we couldn't do our accounting for a few days.