A former Illawarra nurse became so scared of sexual harassment by a Wollongong Hospital doctor she locked her office door and worked with the lights off to avoid him, she told a NSW Anti-Discrimination Tribunal yesterday.Julie Kesby said she lost her job at the hospital after complaining to management that she was being sexually harassed by Dr Nguyen Dang.She claims she was told her yearly contract was not renewed after eight years because her skills were easier to replace than the doctor's.Dr Dang still works at the hospital.Ms Kesby, who is representing herself, has taken South Eastern Sydney Illawarra Area Health and Dr Dang to the tribunal, claiming she was unfairly dismissed and that her complaints were not properly investigated.Dr Dang's lawyer Anne Healey said her client "denies there was any sexual context to any of his conduct towards Ms Kesby".The area health service also disputes Ms Kesby's version of events.In her opening statement yesterday, Ms Kesby said Dr Dang developed a "protracted, romantic interest" in her throughout 2005 and made "very frequent and inappropriate" phone calls and text messages, asked her to give him massages and gave her erotic literature to read.She told the tribunal the issue flared when Dr Dang made a misconduct allegation against her after she was seen giving a back massage to a shirt-less registrar in a private room.Ms Kesby said Dr Dang had been "extremely jealous".After the incident she "felt scared", she said.On one occasion when she was the only nurse in the department, fearing Dr Dang would arrive, she pretended she was not there by locking her office door and working without any artificial lighting, she said.Ms Kesby complained to her supervisor and senior managers in the area health service in October 2005 but claimed they failed to investigate Dr Dang's conduct. Instead she was asked to move to a lower-paid position and when she refused, her contract was not renewed, Ms Kesby said."I turned to my employer for help, they used the salacious nature of (Dr Dang's) allegation against me," she said.A medical technician who worked in the same department told the tribunal she viewed the relationship between Ms Kesby and Dr Dang as "two people going through difficult patches in their lives and they enjoyed each other's company". She described Dr Dang as "very conservative".A registered nurse who worked with the pair described Dr Dang as "prudish" and said his joking behaviour was often misunderstood.The hearing continues today.