DISCLAIMER: I WILL PROBABLY LOOK LIKE A POMPOUS ASS IN THIS POST
I've said before that I don't claim to be the smartest guy in the world, but after 4 years of college, 2 years of graduate school, 4 years of medical school, and 5 years of surgery training, I think it's safe to say that people like me are some of the more highly-educated people in society. There are some other very highly-educated people in this world as well (Ph.D.s, lawyers, educators, pharmacists, dentists, etc), but that doesn't give them any insight into medicine or physiology. Some highly-educated people just don't seem to get that.
A patient of mine introduced himself as "Dr. Suchandsuch" (not his real name), so I naturally assumed he was a medical doctor. Now my conversations with other physicians are on an entirely separate plane as compared to non-physicians, because there is a reasonable assumption of medical knowledge no matter what the field. Even a psychiatrist knows most surgical jargon. This guy nodded and went along with me through my whole talk with him about his condition. When I was done, I asked him if he had any questions.
"Just one - what did you just say?"
Turns out the guy isn't a doctor at all - he has a Ph.D. in mathematics. He's a SMART guy, don't get me wrong, and I would have no problem calling this guy "Dr. Suchandsuch" if I were a student in his class as a sign of respect for someone in his position. But I'm sorry, if you are a Ph.D., you do NOT introduce yourself as a doctor to another doctor when you are the patient. I don't think of myself as better than this guy, but that's nothing short of arrogance.
I've had chiropractors pull the same bullshit with me. Chiropractors are NOT doctors, despite their "DC" tag that they give themselves. When I've been a patient, I've introduced myself as my first name. If the subject comes up, I'll tell the doctor that I'm a physician as well. That allows us to communicate a lot easier. But when I'm a patient, I'm a patient. When you're my patient, don't bullshit me.