There is a population of media developers that are fairly heavy marijuana users. By 'media developer' I mean animation, VFX, games, and other graphics & entertainment related type of software. We tend to be older, having been in graphics and media for 20 to 30 years for most of us pothead graphics junkies. We have bongs and all the typical pot smoking accessories out in the open at our offices, and they are in active use throughout the day, from the moment the day starts.
In general, we are people that write the core software of the renderer, the simulation, the shaders, the production tools, or other somewhat overly complex yet creative element of our work. We've been leads for 20 years, at least. We're all people that enter into deep states of flow when stoned, and many of us believe the pot is required to quickly enter flow and then stay there for hours on end as we develop.
We're split between people with pot belly and people that actively work out. The only consistency of this crowd is we all use pot to isolate ourselves into our work, and we're working in media production.
Now media production itself drives many people to drugs, simply due to the pressure of that ever present deadline. I'd like to clarify that the pot smoking developers I'm talking about typically ignore this pressure, mocking it, because they have already adopted an obsessive developer lifestyle. These are basically creative stoners that would work like this anyway, and are glad to get paid well doing what they love anyway. Also, this is all we do, pretty much 7 days a week. We're obsessive, the pot seems to aid that obsession, our employers like our productivity and look the other way towards our open smoking in the studio.
Personally, I smoke about 1 oz of high grade Indica per week. The typical pot smoker is 1/8th that.