Somebody’s bus driver saw them running and waited. Be the kind of person who remembers that five seconds forever.

Five seconds of somebody’s discretion can rearrange a whole morning. The driver did not have to wait, no rule required it, and the gap between a made bus and a missed one is the gap between an ordinary day and a bad one. Small powers get used by people all day long, mostly invisibly, and the ones who use them kindly rarely hear about it.

You hold a few of those yourself. Hold the door, save the seat, wait the extra ten seconds. And when somebody does it for you, let them see that you noticed.