A MAN who broke into a factory and found nothing to steal left behind a bitter letter of complaint to the manager, the District Court heard yesterday. It read: 'Put some money here next time or I will set fire to your factory and have it burnt. You make me do this for nothing. I can't even find 10 cents.' The letter was signed with a scrawled initial. Yu Kin-fong, 33, who has now clocked up 13 convictions for burglary, climbed scaffolding and clambered through the window of an eighth-floor factory on October 14 this year. He found no property to steal, so he broke into a second factory three floors below. But again his efforts went unrewarded. Frustrated, Yu found a pen and paper and scribbled down his feelings, interspersed with expletives. The letter was found in the Shun Mou Garment Factory, San Po Kong, Kowloon, by manager Chan Mei-cheung. Yu was arrested a week later after being stopped by police at a commercial complex in Chai Wan and found in possession of a ring engraved with a dragon and some gold foil which he admitted he had stolen the day before. He also admitted carrying out six burglaries between August and October this year, including the two fruitless factory break-ins. He told police he came away empty-handed from a burglary on commercial premises the month before. Lawyer Thomas Evans said Yu, the former manager of a factory on the mainland, wanted money to support his pregnant wife and their child, who are in China. He also wanted to fund his drug addiction. Judge Bailey said Yu's motivation for wanting money was an explanation, but not mitigation. He rejected a submission that Yu should be allowed to continue with a Drug Addiction Treatment Centre order imposed on him two weeks ago for other offences. Judge Bailey said the number of burglaries Yu had committed left him with no alternative but to impose a three-year jail term.