I Have A Random Thought

Yesterday, at the gym, I was doing seated calves and a guy came up to me and said, "What happened to the back of your shoulders?" I didn't know what he was talking about and meekly said, "Nothing." He asked in an animated way, "Are you kidding?" I asked him what he was talking about. He said, "you don't know?" At this point, I was starting to feel uncomfortable and had no idea what he was talking about. He said, it's all marked up. I said, "Really...?" He quickly said, "let me take a picture and show you and he did. There were scratch marks on each side. I said, "probably from the squat bar." He walked off. I felt awkward and still do.