Hobby and Philosophy Sam's hobby was bird fighting and he said he would not feed birds that were not good at fighting, a philosophy that influenced the choice of his students such as Felix Leong, whom Sum received Felix as a student because he was already a master of Wing Chun under master Lai Chi Wa and he won the title of Australian National Martial arts champion in 1977, the following year he fought in New Zealand and ended up as champion of South Pacific.[1]