A mother of two was sent to jail for seven months yesterday for branding her Indonesian maid's arm with a hot iron. The sentence was passed on 32-year-old Ng Bik-man after she was convicted on a charge of inflicting grievous bodily harm, which she had denied. The court heard Ng lost her temper with the 24-year-old Indonesian, who had been ironing clothes with Ng's eight-month-old son nearby. Magistrate John Glass, in Tsuen Wan Court, said he had no other choice for sentencing but to impose an immediate custodial sentence on Ng because it was a serious offence - even though committed in a moment of anger - and she had shown no remorse. Ng had also breached the trust between employers and employees, he said. The court heard earlier that the incident - in which the helper suffered a 10cm scar on her forearm but no permanent injury - happened in the family's flat in Tsuen Wan on August 12 last year. Ng had become angry when she saw her son, in his baby walker, repeatedly coming near while the maid was ironing clothes. The maid, who began working for Ng last June, told the court that her boss scolded her, saying she feared the hot iron could accidentally injure her son. She said she apologised, but Ng suddenly held up the iron and placed it in front of her face. Afraid, Ng instinctively put up her arm to protect herself, coming into contact with the iron and suffering the burn. The court heard in mitigation that Ng, a secretary, was the breadwinner of the family. Mitigation letters submitted to court described her as devoted to her family, which would be put into financial difficulty if she was given a custodial sentence.