Joan Rivers.
She was always such a sweetheart! I think her motto must have been, "If you don't have something bad to say about someone, don't open your mouth".
Speaking of Liz Taylor ..... back in the 80s there were PC games that came on 5" floppies that were labeled as "age appropriate" - eg Leisure Suit Larry in the Land of the Lounge Lizards. At the beginning they asked you if you were 18 or older, and if you said yes, they attempted to verify that by asking you a series of multiple choice trivia questions that you had to ace if you wanted to be let into the game. These were questions that (they hoped) only adults would know the answer to ... eg "which one of these was the 5th Beatle?" Naturally this wouldn't work nowadays with instant access to google / wikipedia / etc, but back then there was no www for a 14 year old to rely on for trivia answers.
I remember getting a real hoot out of one question: They listed 5 men's names and the question was, "Which of these was *NOT* a husband of Elizabeth Taylor?" LOL!!