Years ago in north central PA, I hired a payroll secretary who had grown up in north central OH - 300 miles away. She'd met her husband at college on the PA/OH border and they moved back to his home town to start their life together. Same thing with my wife and I. Turns out she and my wife were on the exact same field trip to Paris back in their high school days.

Fast forward 20 years. My wife and I'd moved to the southern end of PA and were on a vacation with a tour company in Italy. Sitting around the hotel in Rome in a conversation with others in the group we learned that one of them was the mother of that payroll secretary's best friend in high school.