WAGO vs Junction box controversy (14)

This little job turned up some very weird findings when it came to installing some additional sockets for an extension. The RCD looked to have been bypassed after an earth fault was present on the socket circuit.
I'll be back there to trace and find the fault once a time has been arranged.
CONTROVERSIAL TOPICS: Ok so as we all know the general idea of fitting/installing Junction boxes in or under floors is considered at best bad practice! However, in certain circumstances it's perfectly fine. The two installed under this floor are in an accessible area where the customer is aware of. The reason I went MF Wago in the loft is because it might at some point not be as accessable due to loft furniture or insulation. There is also the possibility of no loft access at all within this bedroom should the customer choose not to have a loft hatch in the room.
By the way guys the new kewtech croc clips are on their way after weeks of waiting, so hopefully no more confusing testing colours?
AS USUAL GUYS THIS VIDEO IS FOR ENTERTAINMENT PURPOSES ONLY AND NOT TO BE TAKEN AS ANY KIND OF TRAINING OR EDUCATIONAL PRESENTATION. AT ALL TIMES I AM IN FULL CONTROL OF THE INSTALLATION AND THERE IS NEVER ANY RISK TO PERSONS OR EQUIPMENT. ELECTRICITY SHOULD BE GIVEN THE FULL RESPECT IT DESERVES.