I work in an office, cubicles, lots of yuppie types, everyone far too involved in what others are doing.
I decided let everyone know what it was I was doing, but go outside to the smoking area to vape. Because I know for certain that if I vaped at my desk.... someone would go to HR and there would be a big meeting, and then an official policy to not allow vaping at work where currently there is no policy at all as I dont think they even know what it is.
The office is filled with busybodies, everyone into thier own personal rights.
This tactic is working for me, as my co workers ( who are very anti-smoking ) are starting to question why I need to go outside, in fact my management is starting to question it. They are all so pleased that I have stopped smoking, and interested in what it is I am doing, that when this gets to HR, it will be from a support standpoint, rather than a complaint standpoint.
Different places are different of course... but this tactic is starting to work for me... at least for now.