Chustiva can’t totally concentrate on the class.She talked to her colleague and laughed during teaching time.Her attitude was very unmannerly and disrespected student.In reality, we as a human being all known that teacher’s rules for “do’s and don’ts” during the class.But what Chustiva did was unacceptable.Finally, please make sure to avoid using inappropriate behavior to others students who really want to learn English not paying money for watching you laughing with others during the class.