Quote - how sad is it to discover that some people are so mean-spirited that they would complain about what is a courtesy that many of us would appreciate.

No kidding! It just dawned on me that those same people are probably the first ones to kick up a fuss when they aren't seated and served promptly in a restaurant, or able to locate a sales clerk in a department store instantly. Sad indeed. I used to work in the hospitality industry, still do in a round about way, and it's I know customers enjoy being treated like they are the only ones on the planet at that given time, and so do the clerks/waitresses. Courtesy is important in a customer-buyer relationship. The internet has impersonalised it so much that people forget that they are actually dealing with real people though, even if that person isn't standing in front of you.

"It is good to see ourselves as others see us. Try as we may, we are never
able to know ourselves fully as we are, especially the evil side of us.
This we can do only if we are not angry with our critics but will take in good
heart whatever they might have to say." - Ghandi