On Sun, 16 Oct 2016 13:53:30 +1000, F Murtz wrote:

Although I do not handle the phone in the car, any conversations are
carried on the same as when I used two way radio, usually short and
sweet and the phone conversion gets ignored when driving requires more
concentration.
I do concede that some drivers get immersed in the phone conversation to
the detriment of driving .
Has anyone watched the tests of phone use on a track ? How many stop
using the phone when negotiating cones or emergencies as a sensible user
would, do they use psychological tricks to keep the subject talking on
the phone?

Pilots are taught: Aviate, navigate, communicate.

I don't know what a cute corollary is for driving, but the concept is
universal to operating any dangerous machinery.