A Man Goes To See A Doctor

A man goes to see a doctor. ''Doctor, I have a serious problem, you see... I'm impotent!'', to which the doctor asks with a suprised look, ''Well how do you know for sure that you're impotent?'' The man then explains, ''well you see, my great grandfather was impotent, my grandfather was impotent, and even my father was impotent!''... The doctor, with a surprised look on his face then asks the man, ''Well where did you come from then?'', to which he exclaims, ''Me? well I'm from New York!''