Jay Honeck wrote:
It's lovely when you have no interest in what the peanut gallery
is blathering about.


Amen to that! With two kids in the back, that little switch is a Godsend.

The old PS Engineering intercom in my bird is similar. It has "All",
"Crew", and "Pilot" switch positions. When the wife is flying shotgun in
the right seat and her friend(s) is(are) in the back, I can isolate
myself. When we have a parent/child or 2 kids in the back and the wife
and I need to pay attention on an IFR arrival, we can isolate the back
folks from us.

Whoever though of this little feature was definitely having a good day.
Mike