I'm lucky enough to work for a really good friend in an automotive shop, the atmosphere itself sort of implies a bit more freedom than most jobs, as a matter of fact if I think back to every single shop I've worked at they all allowed the techs to smoke in or very near to the work bays, so even when I smoked I was able to do it right at my tool box. Nowadays I vape very very hard at work, so much that on any given day you can see a haze of vapor rolling out of the bay doors to the shop, all of the other businesses in the same complex know me as "that vape guy" and not a single complaint has been made to date. There are a few other vapers in the same complex but nobody else uses mechanicals or subohms on the daily so they're always in amazement at how much vapor I produce and how much juice I go through, I've been averaging 7-10ml a day more recently. I get lots of comments from the other coworkers to the effect of how good my clouds smell, and while some customers seem a bit confused at first after 2 minutes of me explaining everything to them they're asking me where they should go for a starter kit, I've probably converted a dozen random people to vaping simply because they saw me blowing clouds in the back shop area.
