Biggest union farse I heard was when my EX was working in a prov outpatient clinic. They were in negotiations with the gov at the time and the subject of vacation pay came up. The union said that although they received the usual vacation pay it was insufficient as they had to have the funds not only to go on vacation but also maintain their house while they were away, Plus the added expenses of eating in restaurants and staying in hotels. Hence they should ask for more vac pay. This was met with a fair amount of disbelief that the gov would pay more than the usual 4% (which the employees had contributed to). The union guy said no it was not illogical as they, the union, had that arrangement. And who pays the union dues?
Long story short was basically the union was greasing their own wheels.
My opinion of unions was somewhat lowered by their greed.