What is it with Hong Kong drivers?! Just because they are doing the speed limit, they think they don't need to move over to the slower left or middle lanes of a carriageway. I know in the UK on the motorway, even if you were in the middle lane doing the limit, the police would tell you to move inside if the inside lane is clear.
Also on roundabouts, they insist on using the left hand land when exiting at the 3rd or 4th exit.
This kind of stuff really gets on my case, what the heck do they teach drivers in Hong Kong?!