Clear the Noise from Your Head
I had just settled into my seat on a crowded Amtrak train, when I realized that the public address speaker was uncomfortably close to my head. I discovered this because it was sputtering an annoying static sound.
It seemed like a long time before a conductor appeared, and of course, for every moment that passed, the noise seemed to get louder. Eventually, someone responded to my request and took care of the problem.