Why is hand-to-hand current more dangerous than along one arm?

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Why is a current shock between two hands more dangerous than between two points on the same arm?
 
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Think about what is between the arms that is a very important organ controlled by electrical impulses.
 
Gotcha. The current must travel through the heart, correct? I was imagining current going from one hand to the other through the air as the primary medium.
 
Nor is a brain to be trifled with.

and
Someone struck by a Taser experiences stimulation of his or her sensory nerves and motor nerves, resulting in strong involuntary muscle contractions.

http://en.wikipedia.org/wiki/Taser
 
I have installed, maintained, and repaired many kinds of high power and high voltage equipments during my working career. We survivors have an important rule when working on these, whether you think the power is off or not: ONE HAND BEHIND YOUR BACK or IN YOUR POCKET! Having always obeyed this rule is why I can respond here today.
 
sophiecentaur said:
Some people's brains are located a bit lower down.

Well then god forbid a shock goes through both of their feet!
 
sophiecentaur said:
Some people's brains are located a bit lower down.

So true lol!