[Oyk]

Some fail to understand the difference

Sg make it very clear from the start by written into constitution

Official languages and national language Malay, Mandarin, Tamil and English shall be the 4 official languages in Singapore. The national language shall be the Malay language and shall be in the Roman script: Provided that — no person shall be prohibited or prevented from using or from teaching or learning any other language; and nothing in this section shall prejudice the right of the Government to preserve and sustain the use and study of the language of any other community in Singapore.

Language of documents (O. 3, r. 7) All documents filed or used in Court must be in the English language. A document which is not in the English language must be accompanied by a translation in the English language certified by a court interpreter or verified by an affidavit of a person qualified to translate the document.

Documents, etc., to be in English Every document that a society is required to furnish or submit to, or lodge with, the Registrar must be in the English language or, if the document or any part of it is not in the English language, be accompanied by an accurate translation in the English language of that document or part.

So Malaysian Chinese or Malaysian of any minority should stop treat it oddly.

Malaysia's laws are not subjugated to Singapore's, so what we wrote in our Constitution are not binding on them.

Nevertheless it's common sense that if you are a Malaysian, you should speak the working language of your country with another Malaysian in an official setting. On a social setting, a group of Malaysians can speak whatever they want among themselves but speaking to an immigration officer is not quite a social thing.