Owners' manuals are handy if screwing around with things doesn't work.

In my experience, it's fairly hard to hide a battery, and you always disconnect the negative terminal first.

OTOH, they are making cars more complicated these days. I have three separate controls for headlights. The main one shuts off when I shut the car off. The one for fog lights does too, I think. The one for paring lights doesn't, and if you don't turn it off on purpose, it can kill the battery.

What I'd like to know is the proper angle to adjust the windshield washer fluid shooters so I can nail tailgaters. Now, if they could just design a separate set of squirters (ideally, roof mounted and adjustable, although they might prove distracting) drawing from a small reserve of fluid that resembles bug guts or bird poop...