Hey Laowinners!
I recently came across some info from some Chinese friends that made everything make sense, and that is the etchings in many stairwells of Chinese apartment complexes. Today I talk about thieves in China, as well as decode some of the secret symbols they use to communicate with each other. It's pretty fascinating stuff.

For example in this photo, you can see a triangle, which means that this house is safe to rob. It's followed with a crossed out triangle, which means that it's not safe anymore, and then followed with an X, which means it's not a target anymore. This is a timeline of communication between thieves.
Enjoy!
Thank you so much for your support!