A spurned student took revenge on his ex-girlfriend by calling police and telling them her flat was on fire, a court was told yesterday. Wu Ka-fai, 25, later made three other calls claiming someone was acting suspiciously at the Central address and that the flat had a gas leak, it was alleged. On a further four occasions he made false reports the company at which the woman was employed needed police help as someone had attempted suicide and disputes had broken out, Western Court heard. Wu faces eight charges of wasting police time. He denies the allegations. Magistrate Peter White refused an application from the prosecution and defence counsel that Wu be bound over and ordered the hearing to proceed. The court heard that Wu, a third-year engineering student, made the calls in October and November last year. Defence counsel Kenneth Lee rejected a caution statement given by Wu claiming it was made involuntarily. The case continues today.