I grew up and went to school in Northumberland, in the north of England. At school, I was good friends with two girls, Debbie and Morag, who were best friends with each other. I didn't keep in contact with either when I left school and went to University, in Brighton, at the opposite end of the country. Four years later, I started a job in Kingston-upon-Thames, on the west side of London and over 200 miles away from Northumberland, and had forgotten completely about these two girls.
One day, after work, I popped into Sainsbury's in Kingston to get some shopping done. Whilst wandering around with my basket, I saw a woman pass by the end of one of the aisles. 'That looked just like Morag' I thought, but dismissed it as I didn't get a really good view. A couple of minutes later, in another aisle, someone said 'Hello', and I turned round to see Debbie, who I'd obviously not seen for 4 years. We both said what a coincidence that the two of us should meet such a long way, and so many years, from our school. I mentioned that bizarrely, I'd just seen someone looking like Morag, and had Debbie kept in contact with her?