Pffft... in our last house, which was new at the time, 1993. I could NOT get rid of an electircal buzz in everything. Part of it was GA Power. I got them to come out and stood under the lines feeding the house with an AM radio. IT would buzz like heck if I got under the lines. They shecked at the pole and replaced something there and that part of the problem was fixed HOWEVER...
That was not the worst of it. I was still getting a LOT of noise in the house when trying to record, use a radio, or even play guitar. I started to pull wall plates from the outlets and switches... EVERY ground wire was loose and they had just used the places on the outlets and switches where you push in the A/C wires... I had to go through the whole house and tighten every ground wire. That pretty much fixed it... but I was amazed at what a sloppy job had been done.
I learned about electricity in the 1950s when I was a kid. My parents had a Philco console B&W TV in the bedroom across the room at the foot of the bed. Being yound and curious, I wondered what electricity woud do to me... so I just tok the direct route to knowledge and put my finger on one of the prongs (at that time there were no three way sockets). I guess I chose the right one to put my finger on because it only knocked me across the room, into the footboard of the bed. That was all I needed to know about electricity at that time.
I recently had a squrrell learnthe hard way about electricity at my wife's office, thankfully he was hanging half out of a hole under the roofline where he had been chewing on a wire. He wont be chewing anymore wires and the hole is fixed... the wiring replaced.
You gotta love noisy power... it gives you something to do!