This guy goes to the doctor for a vasectomy. Unlike the usual patients, he shows up in a limo, and he's sitting in the doctor's office in a rented tuxedo with black tie.
The doctor says, "I've done a lot of these, but I've never seen a limo and tuxedo before. What's the story?"
To which the fellow responds, "If I'm gonna BE im-potent, I'm gonna LOOK im-potent!"