A warehouse worker who complained about noise from an upstairs flat for more than two years finally snapped and tried to flood the family's home by pointing a fire hose through the letter box in their front door, a court heard yesterday. But when Chan Ming-cheung, 46, was caught red-handed with the hose by his neighbour, Choi Kwong-wing, in a follow-up attack, he struck Choi with a chopper, the District Court was told. Prosecutor Terence Wai said Mr Choi, 28, and his family had moved into a flat on the 19th floor of Lok Wah Estate, Kowloon, back in 1999. The court heard Chan, who lived on the floor below, had complained on numerous occasions that Mr Choi's family was noisy, that their dog kept barking and that there were water leaks. On February 23 this year, Mr Choi returned home to find his flat was wet. Suspecting foul play, he took his camera and hid outside his own flat, the court heard. Five minutes later, Chan emerged and pulled out the public fire hose and pointed it through Mr Choi's letter box, the prosecutor said. Mr Choi took pictures, the court heard. As the two men argued in the corridor, Chan took out a chopper and struck Mr Choi on his head. After Mr Choi had shouted for help, two other tenants came out of their flats and Chan fled, the court heard. Chan was arrested later at home. Mr Choi was admitted to the United Christian Hospital, Kwun Tong, with cuts to his head and cuts and fractures to his right hand. Chan denies one charge of wounding with intent. The trial continues today before Deputy Judge Joseph Yau Chi-lap.