I was seven months pregnant, broke, and barely holding things together when I saw an elderly man at the grocery store. He was carefully counting crumpled bills, choosing dog food for his little terrier, Pippin, instead of buying himself food. My heart ached, and even though I had only $20 left, I paid for all his groceries.

The man, Graham, thanked me softly, saying Pippin was all he had. I thought that was the end of it.The next morning, I opened my door and froze. On my porch sat a crate full of groceries, baby supplies, and diapers—and at the curb was a silver car with a bow on top.

Inside an envelope was a letter from Graham. He explained that after his wife passed away, he continued her tradition of dressing simply and testing whether kindness still existed in the world. He told me my compassion proved her belief right.

The car, the supplies, and even a prepaid grocery account were his way of giving back. Now, every time I drive that car or see Graham and Pippin at the store, I’m reminded that a simple act of kindness can change two lives at once—sometimes in ways we never expect.