This happened when I was a kid, but it’s one of those moments that stuck with me for years.

My dad and I were at a grocery store late in the evening. It was one of those quick “run in and grab a few things” trips.

I remember being tired and leaning on the shopping cart while he checked out. When the cashier rang everything up, my dad reached for his wallet and froze. He had forgotten it. I remember the look on his face because it wasn’t just embarrassment. He had already put everything on the belt, the cashier had scanned it all, and there were a couple people waiting behind us. He started apologizing and said he’d have to leave the groceries there and come back later.

Right as he was about to ask the cashier to cancel everything, the woman behind us in line stepped forward.

She said, “It’s okay, I’ve got it.”

My dad immediately tried to refuse and told her she really didn’t have to do that. She just smiled and said, “It’s not a big deal. You can help someone else another day.”

The whole thing took maybe thirty seconds.

She paid, wished us a good night, and left before my dad could even really thank her properly. I remember sitting in the car afterward while my dad was quiet for a moment.

Finally he said, “Remember that. When you can help someone someday, you do it.”

It’s funny because I don’t remember what groceries we bought that night. But I remember that moment perfectly. And every once in a while, when I get the chance to make someone’s day a little easier, I think about that woman in the grocery store line.