This is a picture of yet another badly wired junction box I found under a hallway floor. As you can see there are numerous problems with this, No earth sleeving being the most obvious!
Also this lighting junction box was not easily accessible, making a relatively easy job into a much larger job than it should have been.
Please do remember that junction boxes, or indeed any type of cable connection, should be accessible.
As any type of connection, over time the connections could become loose or break down. If this happens I am sure you would like the piece of mind that if there were a problem and the junction box was easy to get to then your local electrician will find it easier to fix the problem and of course this will save them time and you money!
I also think that if I had a penny for every junction box that probably exists under the floors of peoples homes in the UK like this one, I would probably not have to work another day in my lifetime.