My characterisation of DIY as “Damage It Yourself” might seem a bit mean, but it very much represents the (admittedly biased) statistical feedback we as a sector get from those who choose this route. As somebody remarks further down, competence in these kinds of home-maintenance activities generally derives from experience “earned the hard way”.

Obviously DIY and the attendant issues are entirely absent from the industrial sector, which I spend most of my time frequenting.