AN irate customer launched a frenzied scissors attack on a video shop assistant after complaining about the quality of the store's pornographic films, the District Court heard yesterday. Lai Chi-puk, 27, told how Chow Kiu-bing, 35, repeatedly stabbed him in the head and chest with a pair of barber's shears when he was refused a $150 refund. He said Chow grabbed the scissors from a nearby hairdresser's after attempting to jab him in the head with a pen. Mr Lai, who lost his voice as a result of the attack on November 24 last year, was in hospital for more than three months, the court heard. Prosecutor Josiah Lee said the trouble began when Chow walked into the Yat Sing Video Shop in Kwai Chung and demanded a $150 refund for five tapes. When proprietor Yue Yin-yick, 26, refused, Chow threatened to damage the shop. Mr Yue said Chow left when a security guard arrived, but tried to stab Mr Lai with a ballpoint. Chow rushed into a hair salon, snatched a pair of scissors and threw himself onto the victim, the court heard. Mr Lai said Chow tried to stab him in the head with a pen but missed. Mr Lai added: 'Then he started hitting me with his fists. He rushed into the barber shop and took a pair of scissors. He stabbed me in the head. He also stabbed me in the chest and left side.' Chow, unemployed, denies wounding Mr Lai with intent to cause grievous bodily harm and a second charge of resisting police officers. The trial continues.