| As illustrated in the previous example, the closed circuit produced
by your body and the UTP cable would allow electrons to flow from the negative source to the positive source
through your body. This is due to the ground wires for the devices in one location having a slightly different potential to both the common and hotwires than the
ground wires for the devices in the second location. The closed circuit produced by the use of UTP cable would then allow electrical current to flow from the negative source to the positive source.
Anyone touching the chassis of a device on the network would receive a nasty
shock. A good way to avoid having current pass through the body, and through the heart, is
to use the one hand rule. Simply put, this rule says that you should not use more
than one hand at a time to touch any electrical device. The second hand should remain in
your pocket.
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