A Lot of Money Spit Out of My Sink?

I rented an old house, which was unusually cheap. On the third day after moving in, the kitchen sink was clogged. He reached out and took out a copper coin, which was green and rusty and in good condition. After taking a photo and posting it on WeChat, a friend who was interested in antiques came over overnight, took one look at it and said, "Chongning Tongbao, its quality can reach four digits, will you sell it?" I was stunned on the spot. There was another traffic jam the next day, and a brand new hundred-yuan bill came with the numbers still connected. On the third day, it was a foreign coin. The lady at the foreign currency shop downstairs said it was rare, so she exchanged it for me for more than 600. At that time, I washed vegetables and dishes every day with anticipation, and I got excited when the sink was blocked, as if I was opening a blind box. After a month, I saved a small amount of 20,000. I transferred money to my family, got a new mobile phone, and treated friends to several meals. They were all envious: "What kind of fairy house are you renting? Money is flowing from the faucet?" I also laughed, feeling that I was so lucky. But then I started to stop laughing. And I feel more and more that the last thing that will be spit out from this sink may be related to myself.