A man who robbed six women last year was jailed for six years yesterday in the Court of First Instance. Yeung Kin-kong, 46, had pleaded guilty. Deputy High Court Judge Maggie Poon Man-kay sentenced him after his lawyer said he committed the robberies because his 'life was difficult'. Yeung threatened the women with knives, but no one was injured. He was arrested when he returned from the mainland on November 23.