Looking Great

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!