The driver of a concrete mixer truck accused of attempting to murder his three-month-old son by loosening the gas pipes in their home was considered a danger to himself and others, according to a post-arrest medical assessment revealed. The details emerged on Monday as Cheung Hung-mai, 34, was brought to Kwun Tong Court to face one count of attempted murder of Cheung Chun-yu. His case was adjourned until September 19, pending further police investigations and two psychiatric assessments requested by principal magistrate Ernest Lin Kam-hung. Prosecutor William Wong said the incident was triggered last Saturday by a domestic dispute, during which Cheung argued with his wife over money issues. The argument prompted the wife to leave their Tsui Ping Estate home at 12.25am, Wong said. She returned 20 minutes later only to find the flat locked and smelling of gas. Firemen later found Cheung half unconscious, with his son crying beside him in the flat, the doors of which had been sealed with tape. The gas pipes connected to the stove were loosened. Cheung was not required to enter a plea. His son was understood to be safe, according to prosecutors .