I worked with a client who was wonderfully well-intentioned. She was publishing a book that would give advice to children and care-givers and had he support of an already established foundation. She approached me to illustrate it because she liked my work. I agreed, and was excited to work on such an important project.
After I started, though, things began to change. The client had taken an art class earlier in life, and began to draw on that knowledge to correct my work, explaining (incorrectly) how figures are proportioned, color grading, etc. She would ask me to change line placements, colors, you name it - none of which changed the image substantively, and many of which she requested changed back later.
It was a big job that I started in January. By the time September rolled around I should have been prepping the finals for the printer but more corrections arrived... every day, for the entire month.
She had used up her contractual revisions twice over before I finally sent a warning:
Me: You're well passed the number of revisions included in our contract and the length of the job has increased as a result. I will have to charge you for any further revisions.
She didn't respond. She just sent me more minor and unnecessary revisions.
In October, I sent her an invoice that accounted for these extra revisions.
Client: How can you expect me to pay this? I'm not made of money!
Me: Well I don't have all the time in the world to make every change you ask me to. I've appended the "extras" you've already asked for that weren't included in our contract. Look it over if you think I'm exaggerating. I also warned you a month ago and you didn't respond.
She paid. And kept on sending exacting and really very unnecessary corrections, sometimes regarding emails I had sent weeks earlier. She was a nice lady and I was proud of the project and my work but when the project kept going into year 2, I quit.
Client: (clearly upset) Can you make one, LAST adjustment?
It was the removal of a spot on one character’s face, the equivalent of 9, yes nine pixels. I made the adjustment, returned the file and deleted her from my contact list.