Mongkok seems dangerous, what with acid bottles dropped intentionally from a building that's severely injured people to accidental stuff like speakers dropping from a shop seriously injuring a passerby.
The acid attack:
Last night's attack, the third in six months, injured 24 people, including a four-year-old girl, who all suffered burns to their limbs and faces.
The speaker accident:
The speaker, used by nearby retail outlets to promote business, measured one foot by three.
Maybe you shouldn't look up and just walk very fast in uncovered areas.
I know in some council flats in Hong Kong, you hear stories about glass bottles, rubbish, and even televisions being tossed out the window, given that many flats in Hong Kong are over 20 odd stories high, I would hesitate to think what some of the items would do to people if they were hit by the falling debris.
(Source: The Hong Kong Standard)