This is my answer now when people of authority over me are asking if I have had my vaccine yet.
I tell them I'm in the control group that is not taking it.
I tell them that If I die from COVID, it means I probably should have got the vaccine. If they die, it means they shouldn't have, and at least now there is a way to know the bottom-line effectiveness of the vaccine...
I've found this gives them pause and sounds just medical enough to confuse their tiny sheep mind. I also say it with a certain degree of certainty and relief in my voice, just to keep them thinking.
Can you imagine some random busy body showing up at the loading dock at walmart banging on the door, "I'm here for quarantine" how many middlemanagers would get involved before they sent here home?