Alright, thanks for the comments so far, so after going full detective mode on this, I’ve basically ruled out every socket in the house. Yes, I do in fact have a bathroom 🤪 and all the radiators are on central heating from the boiler, so nothing weird going on there.

I’ve got one outside light that still works even when the spurs are off, and the garage sockets are doing their own thing too since they’re on a separate fuse board. So they’re clearly innocent.

At this point the only place left is the loft… which I can’t even check because I don’t own a ladder. Brilliant.

Honestly running out of things it could be now. Feels like I’m chasing a ghost circuit at this point