I chose the first option, laissez faire, but mainly with the rationale, that lots of different work environments and gigs exist.
Anyway, the question itself is kind of strange… If you are afforded some reasonable downtime on the clock, or obviously if you have some break time, Then, obviously, it would be fine to bring an Instrument, if it's not causing a problem. Some places you might get a weird glance the first time, and obviously there are places where a boss would not allow you to make that kind of noise… But assuming it's not prohibited or causing an issue, I don't even see why this would be a question.
If it is NOT allowed, but you could "get away with it" because you work from home or have a private office or whatever reason, then I would also encourage us to consider this leisure time reasonable. If you have the kind of job that is so fulfilling or exclusive/high-paying the new to give 100% of the allotted time out of your time on earth completely focused and dedicated to your employer and the work hand, then that's fine, but if your job is alienating or replaceable or otherwise crappy, while also affording you some scenario in which you can "get away with" playing a little basson the clock, then, I also encourage that… Without a doubt, many of you would find that to be a strange, or even a moral viewpoint, but I think, being coerced into meaningless work, because of the structure of society is many orders of magnitude more immoral Then slapping some bass in between meaningless emails. I don't see why that's any different than gossiping in the break room or playing on your phone, and I've seen plenty of offices with pool tables, or little putting greens…
If you weren't filthy rich or highly fulfilled by work, then the wholesale uninterrupted commitment of hours of your day is pretty silly and sad.
And to be clear, I am highly effective annd efficient and my job, I work hard, and I do derive some joy, and meaning from doing so. But I also don't wring my hands with guilt and worry for browsing on talkbass for a couple of minutes. Some people will view this as a question of honor or dignity, but they're missing the part where many (if not most) employers do not exude honor or dignity either. It's a symbiosis within a runaway system, and mechanically the crux of the issue is the nature of the workday and work hours. Obviously, plenty of people are paid on commission, or for the delivery of the good or service itself, but in the case of the uninterrupted, 8 to 12 hour workday, you would be pretty hard-pressed to describe a scenario where the uninterrupted dedication to some job of that slice of your life is something that needs to be held sacred.
so again, if it's something that would be allowed, then I don't get why this would even be a conversation, save for the older generations who are still brainwashed into thinking 'work is work, why would I bring a bass?!' If that's you, then fine, don't bring a bass.
If you can get away with it, and you're not going to have some problematic fall off of your productivity, then I again urge you to go ahead.
as far as the question of drinking on a gig… Well, first off, is it a gig for fun, or a professional or quasi-professional gig? Are drinks being served? Is your band OK with drinking on a gig? I'm personally not a big drinker, but I can't imagine a scenario at a bar gig Where I would begrudge a bandmate A few drinks… I have no interest in being around or playing with someone who gets wasted and obnoxious, or plays terribly.. but again, that's a bit of a band management question of one about the ethics or philosophy… It's probably a little weird if you're bringing booze to a gig where drinks are not being served, but in an appropriate setting, where someone is handling their drinks like an adult, I'm not sure I could care less.
I feel pretty similarly about having a drink at a business lunch, but it's a little more questionable on its face, and I'd find it hard to argue against a strict and enforced "drinking at lunch" policy lol, but I know plenty of lawyers and whatever else who are absolutely going to have a small drink at lunch that is otherwise unnoticed. Personally, I can't find anything less appealing to me than having a drink at lunch, then going back to an office, but that's my life to live.