1. famous showman and circus owner P.T. barnum is best known for his famous line "there's a sucker born every minute" he used opportunity has to prove the truth of his proverb. for example, when his exhibition of exotic animals and odd human beings become popular, he found that people tend to linger inside. this made it impossible for new paying customer to enter. barnum solved the problem by hanging a large sign the wall reading "this way to the egress" those following the sign found themselves out on the street. egress is another word for exit. Barnum was right