A married man phoned a prostitute to apologise a day after robbing her of HK$900 at her one-woman brothel in Cheung Sha Wan, a court was told yesterday. Wong Siu-hung, 44, was jailed for 40 months after pleading guilty in the District Court to one count of robbery. The court was told the robbery occurred on Christmas Eve last year. Wong visited the Castle Peak Road brothel where 43-year-old Ng Lung-chu worked at about 2.30pm but refused to pay her. Wong grabbed Ms Ng's neck with both hands while she was putting on her clothes. She resisted and fell to the ground, the prosecution said. Wong continued to grab her neck with great force and punched her left eye, leaving it tender and bruised. He only let go of her neck after she promised to give him HK$900, the court was told. Wong asked Ms Ng for her mobile phone number after taking the money. She was so frightened that she did not report the robbery to police that day. The prosecution said Wong phoned Ms Ng the next day to apologise for taking her money and inquire about her injuries. Ms Ng became scared after Wong phoned her a few more times and decided to contact the police. She asked Wong to meet her, and he was ambushed and arrested by police. In mitigation, Wong's lawyer, Patrick Mak, said his client had committed the offence after a quarrel with his mainland wife which started because he did not have sufficient money to buy a Christmas meal for his wife and son. In sentencing, Judge Kevin Browne accepted Wong had committed the offence on the spur of the moment and that it was not premeditated. He said people like the victim were in a vulnerable situation because they often worked alone, which could make them an easy target for robbery. He also said the incident would have been a traumatic experience for Ms Ng, as she must have been extremely frightened after being punched and grabbed by the neck.