Basic background, I work in a high end furniture store. One customer ordered a custom made sofa, it took a little longer than expected, so he demanded a free coffee table. I felt bad because the customer spent a decent sum so I obliged. Everything is delivered and all is well. 
Fast forward a month later, the customer calls and says his father passed suddenly shortly after they got the furniture, and that they didn’t think to tell us that they have a coffee table similar to the free one we gave them. He asks that we take back the one we gave him and deliver a different one. Problem is, we usually don’t give away free furniture in the first place, and having to go wrap it up, bring it back, and deliver a new one is expensive, not to mention that we cannot sell his table as a new item. If it were any other circumstance I would tell the customer to kindly fack off, but I feel bad about the passing of his father. 