A coworker asked for a meeting with me, and then told me he was going to report me on an issue I resolved months ago. I was blindsided. This is someone I see every day and he has never said anything. He said he was going to call me out in a meeting. He's leaving the job in three weeks, by the way. I told him to say whatever he wants in the meeting. He said, well, he's not going to do that, but he's going to make phone calls. I told him fine, but that in the future he should deal with these issues in a more timely and collegial manner. Today he texted to apologize for blindsiding me, but said I needed to communicate more respectfully. I told him that, actually, I was the one who had told him to communicate more respectfully, and that I had done so in person yesterday. I also told him that I did not respect the way he had handled the issue, hence my tone, but that I did appreciate his apology. Did he expect me to apologize to him? What a prick!