What if someone owes money and doesn't pay it back

This question involves specific circumstances and legal issues, so the answer will be different. The following are some possible situations and corresponding suggestions:

1. Owning a small amount of funds or borrowing between relatives and friends: If it is a small loan between relatives and friends, you can consider not pursuing it, or solving it through oral or written collection. We can consider taking a friendly and patient approach, trying to understand the debtor's situation and negotiate a solution.

2. Owning money or service fees to merchants: When providing services or selling goods, merchants should have corresponding contracts or agreements so as to take corresponding legal measures in case of default. Merchants can bring a lawsuit to the court through legal procedures and seek legal support to recover the arrears.

3. Loan or credit card fees owed to the bank: If the borrower fails to repay the loan on time, the bank will make dunning by dunning, telephone, SMS, etc. If the debtor still cannot repay the loan, the bank can take legal measures to recover the debt.

Generally speaking, every situation has a different solution. When dealing with the problem of arrears, it is best to follow legal procedures and solve the problem through legal means to avoid further disputes and losses. At the same time, we should keep a calm and rational attitude and not be too emotional or radical.