Thank you for your letter.

I will try to follow your suggestions about physical therapy
and report to you about the results.

Alex wrote that I am patronizing when I talk to Mommy. I can't
comment because I don't know what he means or how he knows.
Alex complains that I don't consider "any of us" as my intellectual
peers. I don't know who "any of us" are; but the concept of
intellectual peerage is incompatible with intra-family relationships,
and his complaint demonstrates that he does not consider me part
of his family.

It's important to keep in mind that Mommy's affect and diction
change in the presence of visitors, including Alex. It is unlikely
that she would confide to him (or to you) her fears that 174 School St
would be taken away from us, that she was about to be assaulted by
an attack cat, that there was a dog in the house about to sleep
with me in my bed; it's unlikely that she would beg Alex (or you) 
not to bury her alive, or ask Alex (or you) whether she should put 
a label on the box (in which she was confined) to the effect that 
she was still alive.

From one perspective her confiding these anxieties to me might
be construed a consequence of the "sensory deprivation" for which
I am responsible, from another perspective the opportunity to
confide in me might be construed of great therapeutic value.
In any event, you shouldn't burden yourself with these issues
until you are off service (if at all). I hope your work isn't
too taxing.