You don't have to be drunk to have a good punch-up at a bar in Nanjing . The Rising Sun Anger Release Bar encourages customers to use its staff as punching bags for 50 yuan to 100 yuan a minute. The bar, which claims to have drawn its inspiration from similar venues in Japan, employs 40 burly young men dressed in protective gear to face the wrath of customers. 'Business is going well, especially during weekends. The market is very promising,' an employee said yesterday. The market is so promising, in fact, that Nanjing has several bars with the same theme. Many of the customers were women working in the service industry, such as karaoke bars and massage parlours, the bar's founder was quoted by the China Daily as saying. If a male customer vents his anger at one the so-called 'models', the charge is 100 yuan per minute. A female is charged 50 yuan for the same privilege. Customers can also break glasses and scream. Staff members are given lessons on how to protect themselves. If beating up staff isn't enough, the bar has four psychological counsellors on the premises to provide additional healing. The bar, in Shengzhou Road, opened in February but is so far only licensed as a dance hall.