Feng Yu Hua's words were exceptionally blunt and brutal.
But it also entered the key points.
Other people would not bear being treated so rudely and then responded with smile? How kind hearted of you to be able to respond that way to others!
Being treated rudely would make their impression worse and even if they still respond politely, one's instinctive reaction would be to stay further away from these people. It was because they were very annoying and associating with them would only make them feel that their IQ was challenged.
Just like the saying that one shouldn't slap a smiling face, one wouldn't treat others who didn't treat others well either.
But most people would not care about them.
Their etiquette would not make them curse the rude people, but at the very least, they learned how to stay away from them.
Why should they wrong themselves?