The kiss principal works well for a simple thinker such as I, and as such, given that most folk will be aware of the positive and negative battery connections, the requirement to observe correct polarity, and additionally may well understand a simple light bulb circuit with a switch, then perhaps in discussions it might be worth adopting NEGATIVE as a standard term for the part of the circuits route back to the battery negative terminal...?
I used the term route in that unlike a simple circuit with one length of black wire connecting the "light bulb" directly to the battery negative, in a car chances are that to save on wiring costs it has ever been the habit to use the metal of the chassis or monocoque instead of a black wire from each and every electrical component returning directly to the battery.
How would that work with positive earth cars?
