Here's one I'll never forget,
About maybe 12 years ago, I did a MIA, on the way home we had a gentleman from Cuba(I believe), he was visiting his daughter in London who he hadn't seen for a few years, she'd just had a baby. We spent ages chatting, or trying to. He didn't speak much english, but it was more than I spoke of any other language!! He took a photo of me handing him his meal tray.!! Big thankyous and goodbyes at the end, really lovely..
Anyway, couple of weeks later, I do another MIA, (I know, lucky me!!), on the way out, guess who walks on? Yep, the same gent. He was hugging me like a long lost friend. It was quite emotional. Then he produced the photograph he'd taken of me 2 weeks previously!! He let me keep it and I've still got it...