Michael A. Terrell wrote:

That description is more than simplistic, it is completely wrong.
There are usually more that one good ground path, so you can have a
gradient even if you walked in perfect circles. It all boils down to
Ohm's law, and the current path to every point that is well grounded.
If you have no other choice, you want to take as small of a step as
possible, but a pair of dry shoes add a lot of protection. It's possible
that the ground might only be 10 feet from where the wire touches the
ground. If that is a 7200 volt line, that would be 720 volts/foot. In
that case you would get a shock, even if you are standing on one foot.

Shock as in muscular contraction in the foot?