Wish I could, this is just something I read or hear about on the news, radio, and so forth every now and then, usually because someone got angry when they could

Wish I could, this is just something I read or hear about on the news, radio, and so forth every now and then, usually because someone got angry when they couldn't use their cell and was asked to leave and got angry about it and it becomes a "local interest kind of news story. Bourbon and branch in SF bans cell phones, but that's a bar, not a cafe. I read about another one (a cafe) that bans cell phones and laptops for a certain section of the day, but I'd have to google around for it.