TC, do what my hubby does at airports...
He wears sweats when flying (now that he's officially retired), and when he approaches security, he announces that he has a steel hip. Then he immediately touches the waistband of his pants and offers to "show his incision scar." To date, no one has been willing to take him up on the offer!
(He's kind of an ornery old cuss. Just like someone else I know! ;-)
Um. Let's see. Who could that be? ;)