On Sat, 12 Jun 2021 18:02:19 +0100, charles wrote:

In article , Commander Kinsey
wrote:
Why do people say left hand down instead of left? We all know which way
to turn the wheel to make the car go left, and it's the same in reverse.
And if I'm reversing looking over my shoulder, one hand isn't on the
wheel so the phrase makes no sense!

That was line in "The Navy Lark", a radio comedy programme from the 1950s.

Which was never meant to be taken seriously!