Where I work, almost everyone hunts. So, no real problem. But they are not much aware of the RKBA battle, and some would probably look a little askance at Molon Labe.
It did get a little dicey a while back when a contractor was 'laid off'. He was certifiable, and talked much about his 'assault rifle'. He made a few pointed comments about it when he left, too, after a lot of shouting and desk pounding.
A few folks (I won't say who, since it's against company policy) carried at work for about a week after that.
Right while this was going on I took a day off to attend John Farnam's defensive handgunning class. Some looked at me funny.