From Richard Beck:
If you have ever worked in the restaurant industry you know the reputation of the Sunday morning lunch crowd. Millions of Christians go to lunch after church on Sundays and their behavior is abysmal. The single most damaging phenomenon to the witness of Christianity in America today is the collective behavior of the Sunday morning lunch crowd. Never has a more well-dressed, entitled, dismissive, haughty or cheap collection of Christians been seen on the face of the earth.
...Just think about it. What if the entire restaurant industry actually began to look forward to working Sunday lunch? If they said amongst themselves, "I love the church crowd. They are kind, patient and very generous. It's my favorite part of the week waiting on Christians." How might such a change affect the way the world sees us? Think about it. Just being a decent human being for one hour each Sunday and the world sees us in a whole new way.
But it's not going to happen. Because behavior at lunch isn't considered to be "working on your relationship with God." Behavior at lunch isn't spiritual. Going to church, well, that is working on your relationship with God. But, as we all know, any jerk can sit in a pew. But you can't be a jerk if you take the time to treat your waitress as if she were your friend, daughter or mother.