Surprisingly, there are (or were) a number of businesses that instructed their employees to issue refunds without any questions. A friend was a manager at a K-Mart and I know that was their policy. McDonald's was (is?) the same way. They believe it is better to quietly deal with a disreputable customer than to have that customer create a disturbance and run-off legit customers. God forbid they call the police in such situations.That's awesome, Duke. As a former customer service employee, I've had my share of rude, screaming people.
When I retired from health care and went into sales, I briefly worked at a Radio Shack. I once had a customer come with a telephone that she wanted to return. She didn't have a receipt, or the original packaging; I strongly suspected that she was short of cash, because there was nothing wrong with the telephone.
I politely told her that we couldn't refund her because we had no idea how much she paid for the phone. She started getting angry and insisting on seeing the manager, promising to get me fired. She seemed upset that I wouldn't get upset too. Fortunately, the manager and I got along fine. I went back to the office and explained, and he said he would handle it.
He came out and gave her a refund. But that wasn't good enough. She started insisting that I had a real attitude problem and that I should be fired. My boss nodded and gave me a fake stern look, while saying "I will certainly deal with her!" After the woman left, we had a good laugh.
The best customer service approach going these days is probably Aldi's "Twice As Nice" guarantee on their store brand products. If dissatisfied, even if you bring in the empty bag/container, they will not only refund the purchace price, but provide a replacement at no charge. I asked one of the local Aldi cashiers how often that policy was abused, she said seldomly.