There was a small case at work. As a result of my not very competent excavation in the database of the site, in our catalog got an old-old service, which we do not provide for several years. At the price of 0 rubles. In the evening, three purchases were made. Okay, I call the customers, explain that the mistake, accidentally got, everyone understands everything, they say that they specially arranged the purchase so that we can fix our basket. All except one. The man begins to download the rights, say that according to the law of the offer, we are obliged to sell him this service, there is a description, there is a price, I want to buy it, and I will file for you in court, I am a lawyer, etc. I understand that a man is either bored or just intentionally going into conflict. I answered, well, well well. We acknowledge your mistake, no problems, consider that the service we have sold to you, however, can not provide. Therefore, in accordance with the law on consumer protection, I offer you to issue a refund of money in the amount of zero rubles, zero copies. Or, if you do not need such money, and you still want to use the services of our company, choose any other available position. The difference in value you will have to pay.
The man was silent for five seconds, and then so long: "Well, you and суууууууука" and throws the phone.