A surveyor was sentenced to three months' jail yesterday for splashing hot tea on his domestic helper after she failed to record her daily chores in a log book and refused to accept a $300 salary deduction. Lau Siu-wah, 42, was convicted on March 18 of assault occasioning actual bodily harm. He had denied the charge. The court heard that on April 10 last year, Lau's wife, Yung Shui-mei, had repeatedly reminded their domestic helper, Marietes Gacad Navarro, 28, to compile a log of chores, but that she had failed to do so. Ms Navarro had testified that she would log her chores every night and Ms Yung would then sign the notebook. Lau woke Ms Navarro at 11pm and asked her to sign an agreement to deduct $300 from her salary, the court heard. The maid refused. Lau then became angry and splashed hot tea over her, scalding the right side of her abdomen and her right thigh. A medical report said Ms Navarro suffered redness and blisters. The morning after the incident, Lau forced the maid to sign a letter of resignation, asked her to pack her belongings and took her to the employment agency that had placed her. Ms Navarro, who had worked for the couple at their Tseung Kwan O flat for less than four months, later told the agency Lau assaulted her and forced her to sign the letter. The agency reported the matter to police and Lau was arrested later that day. Defence barrister Simon Woo said Lau's offence was out of character. Mr Woo said Lau had been remanded in custody for 16 days since his conviction. North Kowloon Court magistrate Ken Ng granted Lau bail of $10,000 pending an appeal against conviction and sentence.