A rich man, who has extra fields at home, wants to rent three kinds of land to Zhang, on condition that he gives a chicken to each acre of land. Zhang San put the chicken behind his back, and the farmer (the rich man) chanted, "This field was not cultivated by Zhang San." Zhang San quickly took out the chicken and gave it to him. The landowner sang again: "Who won't give it back to Zhang San?" Zhang San said: "I just heard you say that you didn't give me (seeds), and then you gave me seeds." Why? " The owner said: "I didn't talk about chicken (recording) at first, but I did it as soon as I saw the chicken (machine)."
Care about small interests, act according to circumstances and improvise.