Is it illegal to buy something from a vending machine and then return it?

A few days ago, Zhihu saw a problem and found that many customers have this problem. Some consumers bought something on an unmanned vending machine, and found that the item did not fall after paying the money, so they pressed the refund button next to it, but the money was not refunded. I took a few shots of the vending machine with the mentality of trying it out, and the thing fell off. After taking the thing out of the house for a while, the money was returned. Is this illegal? To this end, I saw the explanation of Zhihu netizens, let’s find out if this is considered illegal or criminal. I personally think that it is not a crime, and the reasons are as follows: 1. The amount of crime is not reached. The amount of the crime of fraud is 4000, the amount of the crime of theft is 2000, and the amount of the crime of embezzlement is 20,000 (depending on the level of economic development in different regions, there will be differences). 2. There is no intention subjectively. At least there was no purpose for illegal possession at the time. Afterwards, there is an explanation below. 3. The most likely crime involved in this behavior is the above three crimes. The subject of the question, if after discovering that the refund is successful, there is still no return of the item, it is most likely to involve improper gains in the civil act, but because the amount is basically very small, mediation is applied, that is, after the fact, through a certain method Return the item or pay the purchase price. From a legal point of view: All endangering national sovereignty, territorial integrity and security, splitting the country, subverting the people’s democratic dictatorship, overthrowing the socialist system, undermining social and economic order, infringing on state-owned property or property collectively owned by the working people Infringement of citizens’ private property, infringement of citizens’ personal rights, democratic rights, and other rights, as well as other acts that endanger society, are criminals that should be punished in accordance with the law, but the circumstances are significant and minor harm is not serious, do not consider Is a crime. However, different countries have different concepts of crime. Some acts are crimes in one country but not crimes in other countries. The definition of crime in the Criminal Law of the People's Republic of China is a formal and substantive definition. The first part is a formal definition, and'acts against society' is a substantive definition of crime. In summary, the scenario described by the subject is not very harmful, causing no major impact or subsequent harm. It is not within the definition of crime in our country, so it is not a crime.