I've never really worked on them. Just once in a while one hits me and makes me laugh. My Al Gore was sort of like a gay Gomer Pyle.
I've been involved in one or two successes in classical plays but nothing to touch the excitement and the glamour and the gratification of being a children's hero for so long.
None are so eager to gain new experience as those who don't know how to make use of the old ones.