This was more my “boss” than a client, but I think freelancers will sympathize. We were making a simple flyer with a headline, a vertical image on the left, and a block of text on the right. The layout was simple and I gave a proof to my boss for review.
Boss: Move the text up 2 points.
Boss: Increase the font size 2 points.
Boss: Move the text down 3 points.
Boss: Move the text to the right by 4 points.
Boss: Move the text back.
This went on for another 14 revisions before I tried to put my foot down.
Me: I’m going to have to cut you off after this revision. I have a backlog of other work I have to get done.
Boss: I should fire you for insubordination!
I found a new job and left as soon as I could.