I was a union steward at a VA hospital. The issue was a nurse, who complained about other shifts, which irritated workers on the other shifts. Management wanted to initiate this plan to rotate shifts for a week, so as to get to "know" the problems on other shifts. It was essentially to shut her up. I worked with this nurse, and she constantly complained about everything, but you didn't take her seriously. And she never thought anybody would take her ramblings seriously either.
I asked if management talked to the nurse about this. NO. OMG!! they couldn't do THAT. The problem was this plan would affect all nurses, and some who had kids in school etc. Mangement couldn't just apply this plan to one nurse, it had to be everybody. So, we had this big meeting, and it was all about management's rights, past practices, contract language, provision A-2, subparagraph iii-, sub section 3d, etc. When I told the committee that I talked to my "client" about the proposed week on other shifts, and she stated, "tell them to go to hell, I'm not doing it". The committee tabled the shift thing.
This was my only "case" as a union steward.