Now where is the law which says I can't...?
Following on what I said yesterday, I must add, in all fairness, that while in Hong Kong people always try to be one up on you or a step ahead of you, most of them do it in legitimate ways. People seldom go beyond what rules or the law or rules would tolerate. So they don't jump queues. They don't swindle. Before the law banning smoking in public was passed, smokers take a drag in restaurants and ignore whatever "no smoking" signs were put up, but most of them stopped after the law was introduced.
It may annoy you to that no drivers would stop or slow down to let you cross the road, but as long as there are no provision obliging them to do so, they don't see the need or the value to do so. It may drive you crazy to be forced to listen to the phone conversation of the jerk at the next carriage of the train, but unless speaking on mobile phones in public places is banned they just won't have the civility or self-discipline to lower the level of their voices, not to say to stop.