One day, it was raining and windy. A beggar was wearing a plastic bag on his head to protect himself from the rain. Suddenly, the beggar was blown away by the wind and ran to a roof to take shelter from the rain. A couple was talking in the house. The husband said, "Wife, are you happy?" The wife said, "Is my husband happy?" The husband said, "I am so happy. I feel like I am flying in the sky!" The beggar asked, "Master, did you see my plastic bag when you were flying?" I told the beggar not to look for his plastic bag anymore, but to buy some GPUs, and he would be able to fly in the future.