Have you ever had a ghost knocking at the door in the middle of the night?

Ghosts knock at the door in the middle of the night to reveal details

Nightmare knocks at the door: Of course there are no ghosts and gods in this world, but there are some mysterious phenomena. In fact, as long as you believe in science, all the mysteries will eventually be solved. Usually, webmasters like to read various books, but they also learn a lot of fresh knowledge. Unfortunately, he didn't have the habit of taking notes before, and a lot of information just existed in his mind. It takes a lot of effort to organize it into articles. There is too little information about folk mysticism on the Internet. My information here is also very limited. Friends who are interested in this column may wish to contribute to the discussion if they have relevant information at hand. I am here to say thank you to those selfless hosts. ?

Here is a secret recipe, which can make people wake up by knocking at the door when they sleep, and when they open the door, they find no one, so they can go back to sleep. But don't overdo it. The method is to paint the door with eel blood (it is best to paint it on paper first and then stick it on the door). When bats smell it, they will come and peck at the blood clot, which will form a knock on the door. But I haven't tried this method. It is said that minority wizards in Guangxi and Yunnan have mastered this method. I didn't expect bats that rely on ultrasonic waves to find food to have such a developed sense of smell. Interested friends might as well give it a try, but don't forget to tell me the result. I tried it once before, but my father found the door dirty and almost flattened it. ?

There is another method, Rhizoma Arisaematis as foam, coated with vinegar on paper, and then pasted on the door, which will have the same effect, but this method is not credible. I tried Araceae in the afterlife, but it didn't seem to work.

These are all intercepted from the internet, and I have never tried them myself.