Both Ends of a Conversation

The other day I was in one of my favorite fast food places. It was after the lunch rush, and so the place was fairly empty. So, I guess to liven up the place, two different people at different times and different tables spoke on their cell phones. Not unusual. But they pushed SPEAKER, I guess so we wouldn't be in suspense about the other half of the conversation–like we were interested.

Cell phones in restaurant rules:
1. If its a long call, excuse yourself and go somewhere away from people, especially if you think you have to yell in your cell phone to be heard.
2. Never yell in a cell phone - it doesn't make the signal any better on the other end. (Turn up your volume so you can hear the other person better. Yelling tends to be a function more of the insensitivity of your ears than of the phone.)
3. Don't hit "speaker." We don't care.