Here's one of the lines used by management as a "scare" tactic.
"The only guarantee is your dues. You do realize that the first thing the union negotiates is dues, right?"
The reason why the union "negotiates" dues is for accounting or administrative purposes. Essentially ALL companies show the deduction of the paychecks. The monies collected are then transferred to the union. The above, naive statement is made to look as if THIS was the MOST IMPORTANT item on the agenda. Can we be THAT STUPID? If YOU believe that, then YOU are a prime candidate for drug-testing.
That statement was made by someone in management. It was a response in a thread called "The Time Is Now", which about 10 threads below this one. But do yourselves a favor. Read it while your taking a dump. In this way, when you're finished reading it, you can flush it down the toilet, too.