I've gone to the range with my boss, another group manager, 2 guys that work for me, our administration lead and her (now ex-) husband who works at an LGS, and a visitor and his wife from California on official business here. Even one of the security guards in our building is in the Mid Pacific Pistol League with a few of us.
There is no problem with some of us owning guns and others not -- at least so far. We have an open invitation for anyone else who wants to come to the range. I usually supply the majority of hardware and ammo, and those participating throw some cash my way.
There is just too much shooting interest and people involved to try and hide it.
I did read a story where a woman falsely accused a guy she was competing with for a promotion of threatening to shoot her. After confiscating his guns, getting fired, paying for lawyers, and dealing with the humiliation, the woman recanted. She got the promotion, and the gun owner then spent even more money for lawyers to regain possession of his firearms.
The article said he was in the process of hiring attorneys to sue the woman and anyone else who had an opportunity to prevent his damages. Haven't checked on that status or outcome.
That story basically recommended, if you own guns, don't mention them casually at work. It's one of those hot topics that some whackjob Liberal could easily use against you with no evidence. All it takes is a TRO sworn against you, and the downhill ride to hell has begun!