The solid protection brought to the use of electricity by the GFCI is a matter of record.
Originating at the front area of a log home directly above the front port at the roof level, the fire traveled upwards along the frame of the roof line resulting in significant fire damage.
More than likely, however, in our industry, what we do know about electricity will cause more damage. Although armed with knowledge, we tend to forget the precautions and get caught up in the excitement of electricity.