I went into Walmart late in the afternoon in a panic just before the optical department closed because I accidently destroyed my glasses frames beyond repair. The clerk found replacement frames in stock, popped in the lenses, did an adjustment, I paid and left. It was while walking across the parking lot that I vowed never to bad-mouth Walmart again. They did me right.
They were pretty good about replacing my wife’s car battery when it went dead before expiration date.