Ever have strange conversations with strangers?

I went for a walk in the bright sunshine day and after about a block some guy stopped me on the street and introduced himself to me. I guess I spoke at a church he was at one time and he remembered me. He was wondering when I was coming back. A block later another stranger stopped me and asked what happened to my dog. I told him that it died a few years ago. He then broke down and started crying about the loss of his dog.