My M-I-L was a teacher. She was intelligent but thought she was smarter than she was. She once mentioned that Santa Fe was the oldest continually settled European city in the U.S.
Being a Floridian, I knew it was St. Augustine. She argued so I got out their encyclopedia and showed her. She did not take it well. There were several more where I was right.
She told me that all of Florida was on Eastern Time, I corrected her that West of the Apalachicola River was on Central Tine. She argued with me knowing that I was born and reared in NW Florida,
Well your M-I-L was a goddam idiot.