Good point, This policy was imparted to me during my instructor
training. And I even indirectly referenced it in my post below.

As an instructor you quickly learn that there is a lot of
unsubstantiated information around. I have heard more rules quoted to
me that no one can find in the FARs than I can remember.

Even if the story is not true, it does have good point that just
because you are not the pilot in command if you have the experinence
and ratings you should do everything you can to keep other pilots from
doing something stupid.

If someone does have some information to substantiate the story I would
love to see it.

Brian
CFIIG/ASEL