The fortune teller replied to this paragraph.

"I believe you are a ghost. You are a bad old man." This sentence does not have any derogatory color of swearing, it is purely an expression of inner dissatisfaction. When people are deceived and fooled, and there is a small angry flame burning in their hearts, they will reply with a sentence "I believe you are a ghost" or "you are a bad old man" to express their inner indignation.

The sentence "I believe you are a ghost" comes from a video of Tik Tok. In the video, the man wearing the take-away clothes of Meituan told his "story" to the video: "When I was 8 years old, I met a fortune teller. The fortune teller said that I wore a yellow robe at the age of 24, and every meal had big fish and big meat. " Finally, he made a concluding comment: "I believe you are a ghost, you are a bad old man, and you are really right."

Because the tone of the last sentence "I believe you are a ghost" is funny, it expresses anger in an angry tone, but there is no swearing, and swearing is civilized and polite, so it has always been used by most people.