Well not exactly a stranger, but a friend I've had known a long time. She and I were close and even dated for a short time. Didnt work out but we were still close. She lived in Australia, so we were long distance friends. Well she had always been sickly but to an extent she never told me.
Turns out she was dying of cancer, it was terminal and she had only a few more months to live. It was painful knowing I couldnt do anything to help. But I did want to give her something so she knew she was special to me, and something to distract her since she was in a lot of pain. Anything to distract that, anything to make that pain go away -even for a moment.
Well she was a big fan of Harley Quinn, but she was also pretty poor. So she never had the money, nor her parents, to get one. So I thought I'd surprise her by getting her this big super detailed Harley Quinn statue. I got her address from a friend and ordered it to her.
She opened it in her hospital bed a few weeks later when it arrived. And it was the best thing in the world to see that smile again, something I hadn't seen since the cancer really started getting to her. So, to answer your question, sorta!