It's not that hard to imagine. At my school, the ENT physical exam day (we had one day of Physical Dx in second year) was not covered for some administrative change. In medical school, I just watched others go through the motions. I've seen Bates a few times, but no one's formally told me to look in a year, ask me what I say, and tell me I'm right or wrong. That's a problem with the education sometimes. Attendings sometimes like to say..."hmmm, that's interesting"...my exam was slightly different instead of "hey of no you dumb***, that's not a bulging tympanic membrane". In IM residency, a girl was having ear pain and asked one of her colleagues to look in her ear. When she asked what he saw, he wasn't sure. He said he hadn't looked in an ear since medical school. I thought back, I personally had looked on physical exam at times, but never actually come with someone with full blown otitis media.
Tl;dr: you'd be surprised.