Yes I have met many also who proudly proclaim their double barreled surnames. That's why I found your post so funny. These SPGs don't realize they are a laughingstock.
Even worse are those whose names read like pure western names and surnames on paper but when you meet them, they are some tanned skinned slant eyed skinny women with Botox on their super cheena faces who speak with an undiscernable accent (mix of American, British, Aussie, and what have you).
And their husband is always some sort of fat middle aged ang moh prick who works for a bank or some western financial con job firm.