Helmets are sometimes used in fights, but not all of the time. 'Gentlemen's Fight Clubs' are held in private garages or homes. People who work as software engineers and programmers during the day meet there to fight. This way they are able to let out their tensions, frustrations and passions in somtimes overtly violent ways. The participants are known to use keyboards, dustbusters and rolled up women's magazines in their fights. Silicon Valley, California.