Earlier quoted context omitted.
I was just in an awkward social situation the other day where someone left their phone on a table at a party and walked away to do something. Some guy was telling an interesting story and we were all trying to politely listen, but suddenly that phone started ringing at full volume. Everyone just kind of ignored it at first but it kept ringing. I was annoyed and wanted to reach over and mute/end the call, but, you don…
When batteries were removable, removing them was the standard way to make unattended, ringing cell-phones stop.
I've discovered that the fastest way of turning them off is with a mallet.