I've been gas safe or corgi for years and I can count the number of times I've been asked for my card on one hand!
Yep. No one ever asks for my card. With new customers I may offer it to them as I enter their property. No ones really interested!
Back to the issue with landlords and mates, I had one last week.
My mate calls me, and says his electric shower is knackered will I take a look. He can't get hold of his landlord who lives in India, but he would pay me and sort it with the landlord.
I pop over, the shower a Triton was put in on 2.5mm T&E. Mini trunked, but with cable exposed at the bottom of the shower. The isolation pull switch had the string missing.
Then the fuse board was the old, fashioned Wylex cartidge type with a fuse wire not an MCB. As you can guess, no RCD either.
I explained what would happen in a fault situation, that enough current would have to pass through him to blow the rather thick fuse wire backing it up, and no one would be able to pull the isolation cord as it was missing (not that it would matter as he'd have fried by then).
Gave him the number of a good sparky and bid him goodbye.
Saw him at the pub yesterday, asked if he called Nick my sparky. No, he spoke to the landlord who said he would send one of his own guys. I just know that the landlords own guy will do a staight swap as you can still buy the exact same Triton shower. I've warned my mate to not let that happen.
Tenants are fairly vunerable. I should know I rented for years and had some terrible landlords.