Wasting the doctor's time?

Waiting to see the doctor, I'm reading the notices on the board in the waiting room. One of them exhorts patients to switch off their mobile phones during consultations, in order not to waste the doctor's valuable time. OK, no problem with that. But a reciprocation of that courtesy would be nice.

Like a couple of months ago, I'd barely sat down and said good morning to the doctor, when into the room sailed ... I don't know, a nurse or therapist of some kind, without any pause between knocking and entering. She didn't look at me or acknowledge my presence in any way, and there was no apology for the interruption. She then proceeded to waste several minutes of *my* valuable time discussing another patient with the doctor I thought *I* was seeing. I was appalled at the lack of courtesy, and at the breach of patient confidentiality. I can only hope that *my* confidential medical details are never discussed in front of another patient that way!