Gentlemen; May I suggest that, like all sectors of humanity, there are both good and bad!!
The last time I transited YSSY (a few years ago admittedly) I had to hail a taxi to travel from the domestic to the international terminal. Although the driver would not have made much for such a short distance, not only did he readily agree to take me there,
upon arriving at the international terminal he refused to accept payment! He merely wished me a safe journey and good luck.
I cannot remember his name, I do remember that he was of Russian extraction, but I do know that he was a bloody good bloke!!!