The clean up horrors that Bbucko described are unreal. I imagine you would also find needles as well as dangerous human secretions everywhere. It ranks up there with cleaning up a murder scene. It is a barely legitimate business and as such open to plenty of shady characters, bosses and clients.
The clients are essentially the same mix of regulars and out-of-towners I get in the bar (which isn't really all that far away from the sex club). Because it's really quite dark inside, it would be a singularly bad place in inject drugs: not to say it never happens, but it's highly unlikely.
More likely are guys looking for customers whom they can sell drugs to, off premises. The guys who work the door know all the likely suspects (and bar them from entry), but FtL's got some major drug issues to consider, especially for a town its size. Guys come here from all over the world, and the "party" runs 24/7 if you know where to look.
You are right about the skeezy management, though. See my response below about how I left, over a pay dispute, six weeks after I started.
Besides is it something you can put on your resume for future employment? I would think twice about working in such a place. Maybe it would be just easier to get your fix by visiting a few times or working there for fun and being able to quit at anytime.
Unless you plan to be a nightclub/bar "lifer", they create large holes in one's resume that, with today's social media and a simple Google search, can be ferreted out in minutes by a prospective future employer.
There are always ways of overcoming this, but they're a challenge for sure. At least at the bar, there are certain social advantages to my job that I find rewarding. And though I wear very little at the bar, I'm always covered. At the sex club it was encouraged (requested, actually), to work naked except for some accessories (harness, armband, cockring and big boots); granted, it wasn't a demand, but even a natural exhibitionist like me found working in that state to be...daunting, to say the least. Naturally, that job will never appear on any resume.
In addition to what Bbucko said (which made me throw up a little in my mouth) and what earllogjam said I can't help but think that the pay for such a position is not going to be all that great. If you are willing to clean up that kind of mess why don't you open your own cleaning business and at least then you are somewhat in charge of your income and how you earn it.
Keep in mind, that the time I spent helping out the barback that night was considered voluntary: I was never asked to help (at least not directly) and certainly wasn't paid for it, either. The sex club paid me a $10 stipend per 8-9 hour shift, which didn't cover my transport costs in getting there (I took cabs: you wouldn't want to walk in that stretch of town alone at night).
The plan, originally, was that I'd be paid primarily in tips, but patrons of sex clubs don't walk around with a couple of extra $20 bills in their pockets. During my six-week run there, I occasionally broke even (after travel and other expenses were subtracted) but never succeeded in earning a profit. The bosses were completely unsympathetic to me in this regard, to the point where they told me that my expectations were "too high": that was the week I quit.
One of my long-standing rules is that I never do favors for millionaires. If they are interested enough to engage my services, they should be willing to remunerate me properly, thanks.