A kathoey (ladyboy) walks on stage with a number 2 sign indicating the number of the round at a Muay Thai bout at Bangkok's Klong Prem prison.The 'Fighting Backwall' contest at the prison is designed to 'return good people to society' and fight drug abuse by training inmates in Muay Thai or Thai boxing. In 2012 an Estonian entrepreneur, in conjunction with Thailand's Department of Corrections, began a series of bouts arranged between Thai prisoners and Western Muay Thai fighters under the banner 'Prison Fight'. For the prisoners a victory holds the potential of time off their sentence while the Westerners fight for a small purse and personal ambition. Since the launch of 'prison fight' a number of prisons have adopted the idea, encouraging prisoners to take up boxing to fight drug abuse and to give them a purpose while incarcerated. Muay Thai (kick boxing) has a long association with prisons and prisoners and even its origin myths involve the incarcerated. It is said that in 1774 the Burmese king Hsinbyushin organised a series of fights between a Thai prisoner, Nai Khanomtom, captured during the conquest of the Siamese capital Ayutthaya seven years earlier, and nine Burmese champions. After defeating them all the king gave Nai Khanomtom his freedom.