The only celebrity that I have met was Dorothy Lamour. It was back in the early '90's and she was promoting Boscov's department store at the Moorestown Mall in New Jersey which had just opened. She had a Q&A with the small crowd and she handed out autographed pictures of her older self. She sincerely apologized that she couldn't sign individual items but insisted that she signed every one of the pics she was handing out.
Interesting to know how older celebrities busied themselves. I always liked Lamour.