it's Sydney, this S**t is bound to happen, the place is packed in tight with soooo many people.
It's overcrowded, expensive and not always the most pleasant place to be.
I have been up here less than a year and every trip I have down there (I was there last week for work) I am always shocked at the difference in the pace of life. Everyone is in so much of a hurry, and everyones face is down walking at a million miles an hour.
I also notice how people subtly try and get noticed everywhere down there, no-one wants to blend into the crowd, but by trying not to, they do!