[Tangsen]

Yep, when we behave badly and someone told us so, we should reflect on ourselves, because it will make us a better person. If what they said is not true, then clarify properly without vulgarity.

No matter what we think, people tend to stereotype when we don't behave well. When overseas, foreigners will look at us and think that all Singaporeans are like that. This is an undeniable fact.

Who are you to tell another to reflect on themselves. What makes you better than him?
When you show the ONLY negative of course it shows the negative.
Foreigners will not be so narrow minded like you. They may see him as a foul mouth person with a heart of gold.