Some kindness comes with a name attached, and some just shows up and leaves before you can say anything back. The second kind is the one people are still telling stories about thirty years later. A stranger sees the worst version of your day, works out what would actually help, and does it without hanging around to be called a good person. No follow-up, no address to send a thank-you to, nothing left but somebody else’s compassion and a gratitude you never got to hand over. Generosity like that leaves you holding something you can’t hand back, and most people carry it for good.