According to relevant data, rats generally live in a dirty environment. If there are mice in the house, it means that the environment in the house is not clean, so the overall feng shui is also poor, which even means that there may be a shortage of people in the house, so the mice dare to enter the house unscrupulously.
If you see a drowned rat in the water tank on the morning of New Year's Eve, the implication should be auspicious. Because on the last day of the old year, the new year is about to begin. The plague was drowned. They're all gone.