Xi railway station fraud case bought something in the supermarket near Xi railway station. At the time of payment, the cashier said that there was a dime missing, so let's see if there was a dime.

I guess I switched your bag when I took it out of your wallet and spread it on the counter, or I stole some of your cash. Actually, it doesn't hurt to show him. It's no big deal to settle his account first (how much real money should I put back on the counter before I take it out). You have some common sense to prevent fraud. The key to common sense is that you won't lose what is important to you.