The theivery continues...

One of my more frustrating students is a very strong willed girl who tunes out
anything that doesn't fit in her preconceived notions of how music should
operate. When she first learned the middle C position, she tuned out anything
that suggested she should put her hands any place other than middle C. She went
home and practiced a piece for an entire week that was in a C major position but
played it in Middle C. She was very hurt when I told her quite curtly that she
didn't play a single to correctly in the entire piece, and that she got a zero
for playing the piece in the wrong position. It took being a bit harsh in that
regard to get her to pay attention to what I was saying.
When she came back the following week, she started out by putting her hands in
the middle C position. I told her curtly once again that she was going to get
another zero on the piece. She shook her head and promptily moved her hands to
the C major position.
She has similarly fought me on sharps and flats, often totally ignoring an
accidental in plain view. I will have her name the notes. If the note is F#
and she says F, I give her no credit for getting the F part right. I asked her
to play F, then I asked her to play F#. I then asked her if those were the same
keys. Of course, she knew they were not. I then told her that playing F when
the note is F# is not right in any way. It is no more right than saying a T
sound when a word has a Th in it.
It is very frustrating having to work with this girl, as she doesn't listen to
anything I say that she doesn't think should be the case. I have to repeat
myself frequently, and I ask her to repeat back what I've just said. Quite
often she cannot do so, because she tuned out everything I said. I have had to
be quite forceful in fiighting her determination to think she knows it all.
I'm curious as to whether other teachers have encountered students with such a
bent.