Upset with an acquaintance who she felt had bad-mouthed her and her friend, a 43-year-old woman went to his home and stabbed him in the abdomen and chest.
Linda Leong Sok Koon, who has an antisocial personality disorder, was sentenced to five years' jail yesterday for hurting Mr Goh Tee Kuan, 43, with a 27cm knife on July 25 this year.
District Judge Salina Ishak backdated her sentence to her remand on July 28.
A district court heard that Leong and Mr Goh had known each other for a few years. Before the incident, she had been nursing a grudge against him.
She was angry with him for having bad-mouthed her and her friend, Ms Goh San Yen, 42.
At about 6pm that day, Leong and Ms Goh went to Mr Goh's flat in Ang Mo Kio with a knife, but he was not around. It was only on their third visit, at 8pm, that Mr Goh was home. He let Leong into his flat, where she proceeded to stab him once in his chest area and once in his abdomen.
Mr Goh then took a cab to his uncle's place nearby.
His relatives called the police and he was taken to Tan Tock Seng Hospital, where he underwent surgery and was warded until Aug 8.
Deputy Public Prosecutor Jason Nim said the stab wound to the chest had caused Mr Goh's right lung to collapse.
The DPP also said Leong had acted with significant premeditation in arming herself with a knife and in visiting the victim's home to carry out the attack. She had targeted vulnerable parts of his body and caused serious injuries.
Her criminal record also showed a proclivity for violence. Apart from being sent to a juvenile home, she had been jailed twice for causing hurt.
In 2005, she was sentenced to five years' corrective training for torching more than a dozen motorcycles and a bicycle at a multi-storey carpark.
DPP Nim said Leong's antisocial personality disorder had rendered her prone to violence or antisocial behaviour, hence posing a danger to the public .
Leong, who was in tears, said there were other issues that caused her to be so angry with the victim.
Ms Goh, who was charged originally with having a common intention with Leong to hurt Mr Goh, was granted a discharge not amounting to an acquittal last month.
Leong could have been jailed for up to seven years, fined, or jailed and fined.