In a Facebook post on Saturday, Facebook user Belleiansa Xu posted video and photos showing dashcam footage of a man running up to the front of a car, climbing on top of its bonnet and stomping on the windscreen. In his post, the Facebook user - whose real name is Alan Koh - said that the incident had happened to his father, a 72-year-old Grab driver, and called for netizens to message him if anyone knew who the man was.