The experience of dining out, or even grabbing a coffee at a cafe, can be greatly enhanced or diminished by the standard of service one gets.
Most customers, on entering an establishment, want to be made to feel welcome and then to be served in a timely manner to a fairly high standard.
Sometimes when a cafe, bar or restaurant is crowded, most people tend to give the serving staff the benefit of the doubt and wait quietly. I reckon many people would rather wait quietly than cause a fuss. However, there are times when you can simply exercise your right as a customer and leave.
I had reason to do this when I went to a cafe in Napier at the weekend. The woman behind the counter did not greet us when we walked in, but flashed a half-smile/grimace at us as she carried on doing what she was doing.
Eventually she walked back into the kitchen and another staff member came out but did not even look at us. The cafe was not very busy, but it seemed as if we were invisible.