Remembering this one guy from about a decade ago. He had commissioned me to write some LSL scripts for him. Had I known what I was in for ahead of time, I might have either refused, or ask him to be more up front about what he wanted.
Each time, it started as a small script, and once it was finished, he would then ask me to extend or add to it in some way, like he was making up things as he went.
This became very frustrating, because I would often have to go back and rewrite parts of my scripts because I didn't know what additions he would want, so I was unable to plan ahead with my scripts.
At least he paid fairly decently. Not anything near professional rates, but still enough to help my family with getting groceries.