These are mine:
I was showing DP some old photos from before I met him and came across one of my best friend dancing at a (big, thousands of people) festival. We both noticed at the same time that the only other person in the picture, dancing behind her, was HIS best friend. We hadn't met at that point, it was several years before we did, and none of us lived in the same part of the country.
Years ago when I smoked, my friend and I were sitting on the steps of a nightclub wanting a cigarette but neither of us had a lighter. We asked a man walking towards us for a light but he just gave us a dirty look and ignored us. As he walked past where we were sitting, a lighter fell out of his back pocket without him noticing, right in front of our feet.
Please tell me yours!