appearance and intention inevitably ensnare people when artfully used, even if people sense that there is an ulterior intention behind the overt appearance. when you set up ploys and opponents fall for them, then you win by letting them act on your ruse. as for those who do not fall for a ploy, when you see they won't fall for the open trap, you have another set. then even if opponents haven't fallen for your original ploy, in effect they actually have.
family book on the art of war, Yagyu Munenori 1571-1646