Don't laugh at the signs in China

In my old posts, I have laughed at the signs in mainland China. After 1997, Hong Kong is getting closer to her mother land in some way - English standard. I saw this sign on the wall of a club house of a private housing estate in Hong Kong. Pay attention to the English version.

In the dictionary: 'beware' means to be wary of, or cautious of...

Examples such as: beware of the dog; beware of his waspish wit; beware of the icy patches on the road; or in Hong Kong, we always see 'beware of pickpockets', on the bus.

I don't see why we have to 'beware of our own property' Will our own property attacks us or harm us? :-)