I tried working in a library, once I'd been driven out of parks by wandering people on phones. In the library every couple of minutes someone ran outside shouti

I tried working in a library, once I'd been driven out of parks by wandering people on phones. In the library every couple of minutes someone ran outside shouting into their phone "I'm in the library! Hang on!". Grr. And when it's quiet you notice you're within earshot of someone texting on their phone with "click" sound effects.