Let me be clear, this client has been a real nuisance in making unreasonable demands, and has been really rude on top of that. After completing the project and receiving the payment he attempted to come back to me again for more follow-up work, but I told him "thanks, but no thanks". I don't need that kind of toxicity in my life.
Now, a year and a half later, he suddenly comes back and requests I send him ALL the "original" files to the long completed and paid project, without even saying "please" or "thank you" - presumably because he either failed to backup the files I sent him, or because he thinks he needs originals different from the vector files sent before. I am inclined to just ignore his message, and definitely do not intend to help him out in any way. What is your all's take on this?