Have your clients ever accused you of plagiarism?

Hi all! For 5+ years of freelance writing, I worked with different clients: naive, awkward, dishonest, leary, and just wonderful. I did my best proofreading and editing before sending texts but never bothered about plagiarism issues: wrote articles from scratch, didn’t steal content, and was sure my texts were original… But lately, one client returned my text and said he couldn’t accept it because the