Method and system for preventing incidents

A method for preventing an incident using a dialog-type apparatus capable of performing a dialog with a human being. The includes the steps of the dialog-type apparatus detecting a human being; the dialog-type apparatus performing a dialog with the human being; the dialog-type apparatus determining whether or not an abnormality has occurred based on a result of the dialog; and the dialog-type apparatus making a report when it is determined that the abnormality has occurred.