Not sure whether this is better off here or on movies.se
It's a well-known movie cliché where two gunslingers stand in the middle of the street (possibly at high noon), staring intently at each other, hands hovering over the holsters - suddenly the villain goes for his gun. However, the hero, being "quickest on the draw" is too fast for him, draws his gun and shoots the villain first.
Did these types of gunfights really occur? It seems a bit unbelievable that they would wait for each other like that, rather than shooting their enemy as soon as they saw him. Would there have been an advantage in waiting for the other guy to go for his weapon first before you go for yours? I would think that even if you were quicker than him, you'd still draw as soon as possible rather than wait to react to him...