Unclosable external sockets
We moved office last year. Yes, during covid lockdown...
The outfitters who were doing the job were tasked with fitting external sockets on our rather nice terrace. They fitted three out of four of them so low that it was not possible to use the clip to securely seal them up, let alone have anything plugged in at the same time which would run through the gromets at the bottom of the socket. Their idiotic excuse was that this was where the building manager had instructed to install them. I've yet to see the electrical installation safety test documentation, because there is no way that these could have been properly tested as being safe. When I came across this installation I just turned the entire external circuit off, there was no way I was going near them or allowing them to be turned on.
They came back and complained that they were fine and marginally moved them vertically up a little bit anyway - emphasis on the little bit. The result? One socket is still not closeable unless one uses some form of tool to hammer the clip shut, two others are just about closable but still with nowhere near enough clearance to actually run a cable out of the bottom when closed and the fourth is just about usable but only as long as the cable attached to the plug doesn't have strain relief on it as there is till only about 3cm clearance below the socket. Luckily we haven't really moved into the new office yet.