a black guy goes to a doctor 's office to get a vasectomy . he shows up in a limo wearing a tuxedo . when it 's his turn , the doctor looks at him and says , " i 've seen a lot of things , but i 've never seen a guy coming in all dressed up like that ! " and the black guy says , " well , if i 'm gon na be im - po - tent , i 'm gon na look im - po - tent ! "