followed with ‘I wasn’t aware is so important to you. I didn’t want to insult you and if you felt so, I apologize. The word fuck is one I use very often, but I’ll try to control myself around you’
Note I didn’t insult the coworker (no fuck you or fuck off), but simply said ‘fuck’ out loud due to a job error.
It’s part of my religion, are you trying to suppress my religious rights?
Or something like that, there’s always an angle to play if someone wants to be petty or want to exert their “power” over their coworkers.