O
Octopus
Actually, I'm not sure he's going to let me do anything at all. I couldn't persuade him that his unearthed class I light fittings were potentially dangerous. He just said things like "I never touch them anyway so it won't be a problem" or "it's been like that for years and I've never had a problem" or "I can even change the bulbs without touching the metal fittings". They're not exactly high up, you'd bump your head on them if you were very tall. Luckily it was an easy fix though, so I didn't have to argue for too long, and I did it before the CU change. I'm sure he wouldn't agree to silicon on the screw heads now though.
I think that I might have to write him a letter saying that he needs to arrange for the cpc's to be reconnected as soon as possible and that in the mean time he should ensure, as a matter of urgency, that the screws on the light switches are insulated, that no class I fittings are installed and offer to help him with this if he wants me to. I'm not sure if a letter would cover me if someone received a shock later though, but I hope that it would. It's difficult when they wont let you help them, what can you do? I've left the installation in a safer condition than I found it in anyway.
Stick a warming label on the CU, add a note the cert, and send him your invoice and cert!