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Jjc
I get you angle, but I think that work like car repairs involves safety. I can hang a door in the house It will not be to qualified joiner standards but it is unlikely to injure or kill anyone. I am probably biased because I am indentured apprenticeship qualified and have worked with some frightening people doing electrical work on sites. One spark could not connect a multi gang switch. Another spark connected a three phase supply to a four gang switch.