From this article, I think the special characteristics of tourism and services have a variety of forms. Tourism product is intangible products. The service cannot control the behavior. For example, the top three annoying behaviors involve the invasion of personal space: sitting in a seat that’s being kicked, smelling a fellow passenger’s body odor, and sitting behind someone who reclines the seat too far. After all, there’s no way to escape these annoyances when you’re 30,000 feet in the air.