Now, a clever man would put the poison into his own goblet, because he would
know that only a great fool would reach for what he was given. I am not a
great fool, so I can clearly not choose the wine in front of you. But you
must have known I was not a great fool, you would have counted on it, so I
can clearly not choose the wine in front of me...
Vizzini (Wallace Shawn), The Princess Bride, 1987