This module on owning and operating a guard service is one of 36 in a series on entrepreneurship. The introduction tells the student what topics will be covered and suggests other modules to read in related occupations. Each unit includes student goals, a case study, and a discussion of the unit subject matter. Learning activities are divided into individual activities, discussion questions, and a group activity. Units (and subject matter) in this module are planning your business (services, customers, competition; personal qualities, how to compete well; legal requirements); choosing a location (customers nearby; area; space; building; rent); getting money to start (business description; statement of financial need; meeting with loan officer); being in charge (hiring; matching people and tasks; training); organizing the work (work orders; work schedules); setting prices (costs for supplies and workers; demand for services; competition; operating expenses; profit); advertising and selling (plan your advertising; ways to advertise; "people" ads; how to design printed ads); keeping financial records (customer billing form; daily cash sheet); and keeping your business successful (keep track of profits; changing your business to increase sales). A summary and quiz complete the document. (A teacher's guide is available for this module.) (CT)