According to Google, July is Cell Phone Courtesy Month. They gave us a link to a wikiHow on cell phone etiquette. Here is my favorite part:
Don’t talk on the phone in any enclosed spaces, even if you’re more than 10 feet away from anyone. They can still hear you (because it’s an enclosed space) and usually, they’re forced to just sit there and listen.
o Waiting rooms
I would add bathrooms to this list. But I don’t even think that talking should be allowed in bathrooms.
They also had a reminder that it is impolite to take someone’s picture without their consent. I wonder how many more impolite things we can invent for the use of cell phones.