I wonder whether electric fence installer need to have some or other certification. It's amazing that there are so many people working with high voltage equipment yet they do not have the foggiest idea of basic electricity, safety and fault finding. One of the things that I find truly disturbing is the way in which many electricians wire up panels; its all just a mass of crisscrossing wires going from point to point with splice joints anywhere along the length of the wire. No schematic, numbers, markers nothing, just a lot of spaghetti.