Re: @I ain't Spartacus
" I believe it's a (really stupid) EU directive, so come Brexit we can have our fire extinguishers back in black, blue, cream and red - as God intended. "
I agree that the old colour coding was better, but the problem was that the colours were not encoded in law. If we had had strong legislative protections before the EU directive came into force, we would have been exempt.
But the EU directive was a very good thing, because before it you could make extinguishers any colour you liked. When I was doing fire safety training, the trainer asked the whole class to imagine walking into their local MacDonalds, you know, "shut your eyes, picture it" sort of thing. Where are the fire extinguishers? Everyone stopped. No-one could picture them. MacDonald's's standard interior design used chrome fire extinguishers that were designed to blend into the background, which meant if a fire did break out, you'd be unable to find one quick.
Speaking of chromed fire extinguishers, these were also very popular on military bases. Because of restrictions on discipline, the only thing officers were allowed to do as a punishment was to assign domestic chores. Chrome fire extinguishers gave something particularly tedious: polishing. Do something wrong? Your job is polishing the fire extinguisher. Of course, the person who got the real punishment was the person who tried to use the extinguisher to put out a fire, because the polish was highly flammable!
But yeah -- our own stupid fault for never actually having any bloody laws to stop the sort of stupidity above.