When the instructions or process becomes more important than the end product
Tell me about it! [Cue rant!]
Amongst other things, I produce operating manuals for machine tools that have to be CE certified for use in the EU - note - not just the tools, but the manuals also have to be compliant with the regulations.
I've been doing these for years and you no sooner get them compliant (in 5 languages), than the bureaucrats dream up ever more ludicrous, make-work justification for their continued employment, devising nit-picking nonsense rules.
Recent examples include one standard (that turned out to be military) which required evidence that the unit would operate after a nuclear 'incident'.
We politely asked how they would suggest testing for that eventuality. Strangely, that requirement was dropped.
Another was 'Do not use the tool if the switch does not turn it on and off'.
There was also half a page on testing whether the labelling would rub off, including a VERY specific detailed chemical description of the type of alcohol solvent you should use to test the marking/labels for rub-off/curling resistance.
It's bureaucracy for its own sake - "Ve haff ways of making you comply"
Even if we vote overwhelmingly to leave the EU, it'll be like Hotel California - "you can check out any time you like, but you can never leave . . ."
Sorry - rant over - for the moment.
Alastair