LMAO!
I believe that this was a slam on management who had to sit down with them to adjudicate issues.
You're probably right, and it may also have been a response to their feeling (oftentimes entirely justified) that they simply could not be fired for anything short of murdering another employee. Being constantly in the position of fighting for the least amount of work for the maximum amount of pay, they have a very clear idea of precisely what they can get away with, and many push it to the absolute limits in all areas of their own employment as well as those of others.
Perhaps an overall scruffiness that so very many on the Left embrace is a statement of solidarity with their vision of manual laborers....an attempt at "street cred" to use the modern ugly and inarticulate parlance.
Good dialog!