An act of kindness by a cashier in Oklahoma resulted in a hefty bonus for the Walmart employee, KFOR reported.

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Nick Tate was checking out a foster mother and her three children at the Newcastle Walmart in July. The woman’s WIC card would not work properly, so Tate decided to pay for the children’s formula, KFOR reported.

The woman was thankful but then began crying, saying she was a failure. Tate said that wasn’t true.

"For these kids, it's so incredible that they get to have these people in their lives,” Tate told KFOR. “We don't know what they've been through but because of this family, they're changing these kids’ lives.”

Tate’s story resonated with local residents, so KFOR presented him with a $400 check. The cashier, who does missionary work in Honduras, was humble about the gift.

"So thankful," he said. "It's been really cool to see God work and move in all this."