(Newser) – Shoppers at a grocery store in Concord, Calif., got an unexpected surprise at the register this week: free food courtesy of an anonymous stranger, reports the Contra Costa Times. The Good Samaritan showed up at the Grocery Outlet yesterday afternoon and got the permission of the manager for his unusual gesture. He'd wait until a person was about to be rung up, then approach and pay the entire bill in cash. Store employees figure he shelled out about $600 before departing.

"We had people hugging him," manager Jamie Flores tells KTVU. "People were asking him if he won the lottery, if he had a good job, but he didn't really want to give out any information." He seemed to be in his late 20s or early 30s, and the closest he came to explaining himself was to say, "Why not?" when asked about his motivation. (Read more uplifting news stories.)

