I pleased to say my experience is the opposite.
I called National Grid Yesterday to report damage (well, half the boards ripped off) to a wooden substation door that I walk past with the dog.
I dialled 105 and got connected with a knowledgeable call handler who understood exactly what I was telling her, had a good grasp of the possible dangers & the risk posed. She gave the expected warnings about do not approach or touch etc and, after I informed her that I have knowledge of 11kV and wouldn't be going near the thing, told me that she would pass the details onto an Engineer. She did ask if I had any photos (I didn't ... it didn't occur to me at the time to take them)
When I went past a few hours later the door had been patched up & secured.