Read spent only 13 months outside prison between the ages of 20 and 38, having been convicted of crimes including armed robbery, firearm offences, assault, arson, impersonating a police officer and kidnapping. While in Pentridge Prison's H division in the late 1970s, Read launched a prison war. His gang, dubbed "The Overcoat Gang" because they wore long coats all year round to conceal their weapons, were involved in several hundred acts of violence against a larger opposing gang during this period. Around this time, Read had a fellow inmate cut both of his (Read's) ears off in order to be able to leave H division temporarily. In his biography, Read claimed this was to avoid an ambush by other inmates by being transferred to the mental health wing. His later works state that he did so to "win a bet". The nickname "Chopper" was given to him long before this, from a childhood cartoon character.