Yin-yang teacher's joke

1. A fool meditates by the well all day: 14, 14, 14 ... Someone asked him, "Why do you say 14, 14 all day?" The fool pushed the man into the well without saying a word, and then said, 15, 15, 15. ...

2. A fool meditates by the well all day: 15, 15, 15, ... Someone asked him, "Why do you always say 14, 14"? The fool pushed people into the well without saying anything, and then said, 16, 16, 16, ...