Carnies
Most permanent amusement parks (as opposed to traveling fairs and circus') have their share of games of chance and skill (or a little of both) as well as a full roster of folks ensuring that you don't go zipping out of the Zipper or Whirling out of the Tilt-a-Whirl. What they do not have however is carnies - carnival workers - at least not the toothless, rough around the edges types you find at events like county fairs. These workers of the permanent parks tend to be a bit more cleaned up, often bordering on professional. I guess, with all the traveling from city to city, carnies take on a certain lifestyle - low maintenance, simpler perhaps, maybe much more like the lives of people in, say, the middle ages.