Only white people for market surveys, please

Upon crossing a border into Hong Kong, there are often staff taking surveys of tourists. They are very professional with PDA's and short, to-the-point questions. However, they seem to only ask foreign (white) tourists questions. I am almost always accosted to reply to their questions. And, I have often seen these survey takers only asking other white people (often there are only a few white people crossing the border with me in a sea of Chinese). My concern is that these surveys are thus unrepresentative.

Perhaps the ethnic Chinese are unwilling to answer these survey takers? Or are rude?

Choking the Chinese chicken

Beware! Do not bring poultry back to Hong Kong from China or the Customs Man will choke your chicken! :-)

Hong Kong airport

The Hong Kong airport - one of the - if not the - most efficient, comfortable and eye-pleasing
airports in the world.