I just love all the accepted 101% assssssssssssumption flaky ways to kill one's self. It isn't you guys on any of these threads. Your answers are the rote "correct" way to address the problem.
When I ground stake my chassis to earth ground via my green eight gauge wire, the entire freakin' campground wiring can go up in flames and I don't give a damn about someone else's problem. That wire can pass a hundred amps for a short while. I can therefore "pass" for a while longer.
But to assume something is correct is not my bag. Like assuming a connector is "good" because some gizmo lights up and shouts SAFE! Then under load the flaky ground goes away. And maybe, so do you. Forever.