Tyler Durden: Welcome to Fight Club. The first rule of Fight Club is: you do not talk about Fight Club. The second rule of Fight Club is: you do not talk about Fight Club! Third rule of Fight Club: someone yells "stop!", goes limp, taps out, the fight is over. Fourth rule: only two guys to a fight. Fifth rule: one fight at a time, fellas. Sixth rule: No shirts, no shoes. Seventh rule: fights will go on as long as they have to. And the eighth and final rule: if this is your first time at Fight Club, you have to fight.
from "Fight Club"
