An 8-year-old boy, Owen, attends the school dental clinic for regular dental check-up. After the intra-oral examination, you clinically find that he has some tooth decay and ask him about his dietary habit to identify his caries risk. He tells you that he likes fizzy drinks and lollies and usually buys them after school. However, he requires that you can keep secret for him and do not ring his parents about that because they will smack him if they know that.