This didn't happen at my store, but at another in our division. I heard about it second-hand from one of our front-end people.
A woman returned an automobile tire.
Have I mentioned I work in a supermarket?
Apparently she raised such a s***storm and was carrying on so much that the front-end staff looked up the price of the tire online and gave her a gift card for the value.
And people wonder why crustys act the way they do...