The restaurant owner saw over to greet, naturally asked: "Today did not bring his wife to come together?" A female student slammed the table and roared: "My wife is his wife! Who is the woman you are talking about?" The boss was flabbergasted and immediately backed out. The whole table burst out laughing. The man looked embarrassed and asked the female classmate why she was making such a joke, and the female classmate said, "Just wait for the discount." After the meal, the man went to the checkout, the boss really apologized and said, "I really did not know that you brought a lover, go back and explain to your sister-in-law, say that I recognized the wrong person. This meal counts as my treat, really sorry ah.