In the service industry, dealing with singaporean is no
joke....
Tell me how many times will you greet a person back if he/she greet
you?
Tell me when you know you r in the wrong, will you apologize
Tell me how many surrounding service provider you r unhappy
with
& Lastly, to improve our service standard, the Govt actually
have a TV advert to educate the consumer.
You should travel to oversea, be it thailand, malaysia,
hongkong,japan, korea, australia, europe...ask the service provider
how they feel about singaporean attitude....you'll get a shock
answer 
Go times bookshop ask for this book (Kiasu Traveller) & i'm
sure that book will brighten your day.
I always admire those people working in the service industry &
sooner or later, all these job will be taken over by philipinos,
PRC cos local staffs just can't take the shit from our local
consumer.