I tried to tell them exactly what they needed to do, and what mistakes they were making – and my words fell on stony ground. They fell on stony ground? Maybe your ideas weren't that good ...

The term "earthing" was first coined in the 1990s by Clint Ober, a cable TV salesman from Billings, Montana, based on the principles of earthing used by electricians to ground electricity. Ober and ...