Xenia's comments on it are here. Xenia got four hits, I was just hit once. No, I didn't “return fire”. Colleen didn't intend to hurt anyone and was just trying to do her job.
Xenia got MMR, Tetanus, HEP A, and HEP B shots. I just got my Tetanus booster. While nurse Colleen was out of the office I told Xenia that she was going to get it in both arms and both cheeks. She wasn't too keen on that idea and I wish I had brought my camera in to record her reactions to the various things--she can be so expressive without saying a single word.