TOD
Not really foolish, but more embarrassing.
Back in 1978 I had just finished reading a book about CBS (Something Bloodshot Eye. Don't remember the exact title) It mentioned Ken Berry and his wife Jackie Joseph.
I was involved with a TV series where Ken Berry was the guest artist and I asked him during a break, "How is your lovely wife Jackie Joseph?" His reply, "We're divorced" The broke up the year before and the book didn't mention this. Boy was I embarrased!!