When you work in the same club long enough, you begin to notice the regulars. Every club has them. I tend to separate the regulars into two distinct groups. The first group are the 'normal' regulars. These are people who don't appear, on the surface, to have physical, mental, or emotional problems. They're people you'll see at work, at the gym, or at the supermarket. They might even be related to you.
The 'normal' regulars aren't bad people, in my book. They simply enjoy coming to the club, and make it a customary part of their weekend. They're generally well dressed and considerate, and will make a point of saying hello to club employees with whom they've developed a rapport.
Clubbing is not my scene, but I've been a regular at enough bars over the years to understand where these people are coming from. They're likely productive, gainfully employed citizens during the week, some respectable
gay swingers and clubbing is how they choose to spend their time on weekends.
The second type is the one we call the 'misfit' regulars. These are people with obvious problems -- strange appearance, lack of social skills, and in some cases, physical challenges. They usually come to the club alone, leaning against the wall for hours, set apart from the shiny, happy crowd of revelers.
Most of the misfits become hysterical. They will set up camp next to a bouncer, not long enough to become irritating, thankfully, and blurt out unintelligible 'street talk' every time a woman with a sizable posterior passes by. Many vertically challenged customer have serious personal hygiene issues.