a lot of techniques have found their way into street fighting thanks to the travelling sailors who learned "Dirty" tricks..came home and it spread. Of course the average street fighter does not realise or care that what he uses comes from Okinawa and china.. with a touch of Japanese finese or escrima and itīs direct effectivness. Also British wrestling and boxing... and turkish wrestling too..every culture has a way... hense the Japanese word "Do" ...WAY.