According to a local Chinese woman who is married to an acquaintance of Neil’s, Chinese people speak slowly and carefully to ‘Westerners’ because they were taught – in school – that all white people are stupid.
And that wiggling your pinky finger at a mainland Chinese will start a fight. It means the one being wiggled at is insignificant and unimportant. The ultimate insult, apparently.
Not that one should lead on to the other or anything.