I was just talking about this with the wife as we unloaded a power source gizmo we bought at Costco. It's mainly for emergencies when power is out at her office. At least she can use the cigarette lighter socket to charge the cell phone and use the laptop.
I told her, red to red first, black to black on one car and to the chassis on the 2nd car AWAY from the battery. If it sparks, you don't need that spark to ignite any gas present near the battery. I told her have someone (what female gets jumped when there's only one person around?
) hold the other ends away from each other and away from the cars until one hook up is accomplished.
What else should I tell her? I've been pretty negligent all my life about this stuff learning most of my knowledge on the street it seems.