No. This is first hand experience by my brother during anatomy classes. He was a student and one of the jokers, too. He said this behavior was pretty common, and he took part in it.
Disrespectful/joking behavior behind the scenes is not too rare with doctors, either. I have doctor friends who attest to this, as in, they engage in this behavior (so again, no game of telephone here). Never in front of the patient, since that would be rude and unacceptable, but privately with other physicians? You bet.
No, how? To you maybe it is (as would ANY anecdote here not directly related by an anatomy student -- and maybe not even then, because what proof do you have that they are telling the truth?), but to me it's not: I spoke with the student directly, and with the doctors in my second example; in both cases, the person I was talking to was directly engaged in the behavior. So not "a friend of a friend".
You are justified in being skeptical, but unfortunately you're not going to find the evidence you seek on HN. By definition, the written word here is not going to be proof enough. If the topic interests you enough, I guess you'll have to speak to doctors and students directly?
Disrespectful/joking behavior behind the scenes is not too rare with doctors, either. I have doctor friends who attest to this, as in, they engage in this behavior (so again, no game of telephone here). Never in front of the patient, since that would be rude and unacceptable, but privately with other physicians? You bet.