I think when it comes to injuries caused by electicity, it can be remarkably
hit-and-miss.

I've always heard the 1-10-100 rule:  ~1 mA can be felt, ~10 mA becomes
painful, and ~100 mA can stop the heart.  I've also been told that when you
go above that (somewhere around the .5 Amp range), it no longer actually
interrupts the heart's rhythms, but does start transferring enough heat
energy to tissues to "cook" flesh quite handily.

The model I've seen for the human body was 50 ohms for a limb or the torso,
and several thousand ohms for dry skin.  Supposedly, getting skin wet (to
the point where it is pruny) drops its resistance to less than 200 ohms.
You can see where wet paws can lead to a significant shock even from a
fairly low voltage.

As I side note, I once saw a friend get shocked by 60-some 9-v alkaline
batteries connected in series.  Whatever the final current through his body
was I have no idea, but before he was able to release the pile of batteries,
it burned dime-sized pits 1/8th of an inch deep in each palm.

Mike Hord

> > > | Could a person be injured by a 12 volt DC shock, given certain
> > > conditions?
>
>12 volt DC can kill (and has done so).
>
>In an experiment many years ago using volunteer prison inmates various
>voltages were applied in various manners to the subjects. 12 volts applied
>across the chest caused heart "stoppage" and the volunteer died despite
>best
>efforts at resuscitation. (I do not have a reference for this and the
>information is very old but I believe it is correct).
>
>An exceptional circumstance, but it can happen.

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