TWO students who admitted theft charges had ruined good careers by a stupid act, an Eastern Court magistrate said yesterday. Magistrate Michael Hill said they had performed well at school and came from good families but were going to pay for what they did for the rest of their lives. Lee Kar-tat, 20, had pleaded guilty to four charges, including theft from a vehicle and possession of a firearm and ammunition without a licence. The court was told that he was in possession of an air-pistol and 151 metal pellets. Lee Shu-fun, 18, had pleaded guilty to two charges of theft from a vehicle in which a car window was broken and soft toys were taken in August. In mitigation, counsel Herman Wong said the defendants performed well at school and took part in community services. The offences were silly acts carried out on impulse, he said. Lee Kar-tat and Lee Shu-fun were bound over in a sum of $2,000 to be of good behaviour for two years. They were ordered to pay costs of $4,000 and $2,000 respectively.