Please take this as satirical but if it offends feel free to let me know and I will delete/edit accordingly.
I was thinking perhaps the reason I have not had people try to rip me off in China is this, I am 194cms tall and of "Western" looking origin and generally have a very grumpy default face and when it comes to toys if someone is trying to pull a scam my ultra grumpy face comes out regardless of language barrier, while my Cantonese is poor my Mandarin is ok, especially at understanding others, my wife is not so tall but is of Cantonese origin and knows how to intimidate, oops, I mean bargain
with Southern Chinese sellers, basically she takes no $h!t from anyone n Asia!
So Bladie is a very friendly approx. 152 - 156 cms tall "Western" looking person, did I mention friendly, Kiwi who can speak and understand more Cantonese than Mandarin, and her husband, who I think doesn't go on so many toy trips as my wife, is of Asian origin and can speak (possibly) both dialects proficiently.
Gok is the Lord of languages and is well loved in the Oz TF community but once in China tends to blend in with the local population and is about 156 - 164 cms (from distant memory) tall, and from what I have read tends to go on his Han Solo toy hunting in CN.
So if we take the variables out, I am one lucky guy!! 

I still function.....................while killing threads. ;-)