According to Wang Xin, member of the Standing Committee of Feixi County Discipline Inspection Commission, on that day, Li Ming from Caizheng Office of Xiaomiao Town invited his friends including Gao to have supper at "Banmu Tian" Hotel on Tianzhu Road in Hefei. After the dinner, one of them went downstairs and paid the bill. Then, Li Ming claimed to the counter waitress that he had an 80 yuan voucher given by the hotel before, and asked her to return him the cash according to the amount of the voucher. The waitress refused his requirement and then Li Ming got very angry, grabbed the calculator on the counter and threw it. Afterwards, they had a conflict. When hearing of this, several people who had dinner with Li Ming went downstairs immediately. Thus, they had a fight. As a result, a male waiter and a female waitress were beaten, had to be hospitalized for treatment.