¯\_(ツ)_/¯Really stupid question- if "others" is vaccinated, is the unvaccinated employee a threat?
No idea. I'm guessing it comes down to what you can prove in court.
If everyone in your office is vaccinated except for you, it seems like you could argue that you're not a direct threat. On the other hand if you're a waitress serving customers, that's probably a harder argument to make since you can't know everyone's vaccine status.