How to resist a pervert?

Fifth, let's talk about designing against crime. When did I study in England in the early 1990s? We were sent by the Ministry of Public Security at that time. After we went, the tutor said, David, the most fashionable thing in the world now is to design a community to resist crime, that is, we design a community with a high wall and only one door, so criminals can't get in. What is this castle, fortress, closed-circuit television, and criminals can't get in? Now you see that many places in Beijing have installed closed-circuit television and fences. I learned it in England in the early 1990s, but when I was studying, my tutor said, Do you know where Anti-Crime Design first appeared? In your China, this is called Feng Shui. In the late 1980s, I led my tutor to visit the Forbidden City. My tutor was surprised when he entered the Forbidden City, saying that Feng Shui was so good. You know the English word Feng Shui is called Feng Shui in our words, saying that the Feng Shui in the Forbidden City is so good. I said, how good is it? There are no trees in the three halls of the Forbidden City. Why are there no trees? In the past, Confucius said that there was no meat to eat and no bamboo to live in, saying that China had the best greening in ancient times, but you went to the three halls and there were no trees. Why? The criminal will kill the emperor with a knife and run a kilometer. He couldn't find a hiding place. This is called defensible space, which is the top thing in the world, but our country used it very well hundreds of years ago. This feng shui sounds mysterious and full of superstitious colors. But if we strip off its superstitious coat, it is full of anti-crime designs. For example, some people in the Forbidden City say that there are dragons on the left and dragons on the right. There are suzaku above and Xuanwu below, but when you look at it, there is a Jinshui River outside that says this feng shui is good. It's not Jinshui River or Feng Shui. The Forbidden City is all made of wood. In order to prevent fire, there must be river drainage. There is a mountain called Jingshan behind the Forbidden City. Without this mountain, people piled up such a mountain. What is this mountain for? Good feng shui. It is said that there are mountains in the north and rivers in the south. Good feng shui. No, the Forbidden City has 9990 rooms. The gate is closed at night. How can the guards guard it? It must have a lookout. The Forbidden City is artificially built. At that time, my tutor looked at China from the perspective of a foreigner. Alas, he said it was profound and great. In the past, our hometown was Shandong, and every village in our hometown had mounds. Why? I'm afraid bandits will surround you. As soon as this earthen enclosure is enclosed, bandits will surround the village. He will go in, burn and rob, but if he can't get in, he will surround you. After being fenced in, the people inside would die without water and food, so there were wells in the dirt paddock in the past. What if there is no food? What is that wall made of? It's chestnuts, and the wall made of chestnuts, chestnuts, mud and straw that we are eating now. If you really have nothing to eat, peel off a small corner and there will be food inside, so we say that the ancient design of China is world-class in its ability to resist crime.