Like I said, most people (especially if you've lived out here for a few years) can quite reliably do so.
Taking an educated guess based on visual observation and figuring out their job&nationality doesnt have much to do with judging the person. Your father is right but it seems you didn't pick up the right lesson from him.My dad used to own a retail chain and he always told me: son: you can't judge a book by it's cover. Something I have always tried to apply in both my business and personal life.
The weekend is a washout.Anyway, enough of this, let's focus on Typhoon Haima