Carol Flynn of Sioux Falls, South Dakota, didn’t know anyone was watching when she paid for diapers for the Walmart customer ahead of her who learned at the check-out that she could only price match one set, forcing her to set aside three boxes. Flynn, 73, also had no idea that another customer caught the random act of kindness on his cell phone on Sunday night, only to share on Facebook what would become a viral video. Click here to see this amazing generosity caught on tape!