[pdurrant]

Originally Posted by Rumpelteazer

Today we had a customer who proudly declared that when he rewired his home he used the brown cable for ground/earth instead of the yellow/green one. He did this because brown is much more logical since actual ground (dirt) is brown, too. He was able to get blue cable on the cheap, so he used that for everything else.

Wow. I thought that the UK requirement that anyone doing large electrical work on their own house was required to have it inspected was a bit of bureaucracy gone too far. Clearly I was wrong. Yes, please do report him to the appropriate authority - his house is clearly a death trap.

English regulations:

Spoiler:

Since 2005, all electrical work in dwellings in England and Wales whether carried out professionally or as DIY, and whether or not the work is notifiable to a building control body (see below), must meet the requirements of Part P of the Building Regulations.
[...]
From April 2013 electrical work in a dwelling, or associated with its surroundings, is notifiable to a local building control body where the work includes:

• the installation of a new circuit, whether at low voltage (typically 230 V) or extra-low voltage); or
• the replacement of a consumer unit (fusebox); or
• any alteration or addition to an existing circuit in a special location*, whether at low voltage (typically 230 V) or extra-low voltage

I'd be surprised if there weren't similar regulations in the Netherlands.