when she took away the cookies and candy, she guessed that Tang Zhenzhen wouldn't just let it go.So, she discreetly wrote her name on an inconspicuous spot on the five-dollar bill.After she was done,...ill put the money ticket and the filled-out receipt onto a small tray, then push the tray hard. The tray slides along a wire track towards the cash register.The cashier counts the money after receivin...