A DETENTION centre inmate stabbed another in the back two days after a row over extra food, a court heard yesterday. Tranh Quoc Hung, 20, of the High Island Detention Centre, was found guilty of wounding Mr To Phi Long, 30, with intent at Hut K at the centre on July 25 last year. He was jailed for two years and nine months. Judge Lugar-Mawson said in the District Court that Mr To had suffered spleen and back injuries. Defence counsel Mr Michael Wong said Tranh, who came to Hongkong from Vietnam in 1991, was provoked into committing the offence following a dispute over rice distribution with Mr To on July 23. When Tranh asked Mr To for more rice, he refused and poured Tranh's share on to the ground. Two days later Tranh went to Mr To's bed and stabbed him while he was sleeping, the court heard. Mr To woke up and saw the defendant standing at his bedside holding a piece of sharpened metal. Tranh stabbed Mr To again and ran away.