OP, I can only imagine the look on your face when he said, "I don't do that" to you. I have this thought in my head of you responding to him, saying, "Well, I don't do THAT" and gesturing to the scanner. You two could have volleyed the "I don't do that" line back and forth all day! I'm glad the supervisor apologized and seemed to get it. You handled this situation much better than I think I would have.
