In 1975 I moved to a new kindergarten and the teacher said, "Let's see, why don't you sit next to Kathy," and I did. I was at that school for 18 months but didn't keep in contact with Kathy, who had became my friend.
Flash forward 10 years when again we moved and my first class was English. The teacher said "Why don't you sit next to Kathy," which I did.
We both stared at each other intently before it hit us - it was the same Kathy I had been sat next to 10 years before hand in primary school. We laughed about the coincidence and became friends again.