A Texas waiter was handed a huge tip as a reward for his random act of kindness in a supermarket 24 hours earlier.
Kasey Simmons, an employee at Applebee's bar and grill restaurant, was stunned when he saw he had been left a $500 tip on a bill for just $0.37.
The 32-year-old told CNN: "They ordered the cheapest thing on the menu. Flavoured water."
The customer who left the tip turned out to be the daughter of a woman who kind-hearted Simmons had stopped to help in a grocery store the day before.
He offered to pay for her shopping, explaining: "It was only $17, but it's not about the money. It's about showing someone you care."