Have you ever met a stranger, who you never saw again, that you still think about on occasion?

I recently went to a Rolling Stones concert and while I was walking through the crowd and everything I stepped on something which belonged to a woman. I of course apologized, saying I'm extremely sorry and everything. She replied by saying its okay and then asked where I was from, I replied stating my nationality and then she said: "You're so sweet." She winked and smiled, and yeah I smiled back then made my way to my mates.

A few years ago when I was a boy I met a cool dude on a flight who used to race cars and used to tell me stories of him winning cups and his best moments.

I dunno about you guys but I wish I could just meet these people again. It can be an exchange had in passing, a quick conversation with someone at a party, or a deep talk with someone in a bar. If there was ever a stranger that left such an impact that you still think of them, please share! Also what do you think the chances of seeing them again are.