Just plain WEIRDEST thing, wow, I would have to really think on that. Weirdest coincidence though:
I used to go to a small college outside of New York City. I ditched that school and went to northern Scotland for a few months, living in this little community. At the end of those few months, I stayed a week in Glasgow with my girlfriend. Went out busking one morning, spent a few hours in different spots around the city. As I walked with my guitar down a sidestreet in Glasgow, back to the B&B I was staying at, I literally ran right into a girl I'd had classes with at my old college!
Did a few double-takes, shared an awkward conversation and we went on our separate ways. I still can't really fathom the odds.