I bought peonies ($8) and a quart of strawberries ($5.50) this morning at the farmer’s market.
“Thirteen-fifty,” the purveyor said.
I handed her fifteen dollars and she gave me a dollar and fifty cents.
I hesitated. “On second thought, I’ll take another quart of strawberries.” I gave her a twenty-dollar bill and, smiling at the circularity, said, “And here’s your fifty cents back.”
She made change for my twenty and smiled right back. “And here’s your fifteen dollars!”