The first principle is to have a positive attitude that precludes the fostering of hostile and aggressive interactions with students and staff. The second principle is to adopt a personal demeanor that is pleasant and casual without appearing indifferent to professional responsibilities. The third principle is to act courteously in all professional interactions with students and staff. This excludes bullying, intimidating, rude, and defensive attitudes and behavior. The fourth principle is to maintain pride in one's appearance. Although police and security officers are entitled to wear comfortable clothing, it should not be wrinkled or stained. Pride in one's appearance suggests discipline and pride in one's job. A fifth principle involves the judicious use of authority and force. When it is necessary for a campus police officer to use physical force against a person in order to effect an arrest or defend himself/herself, it is important that the amount of force used be no greater than is necessary to achieve the objective. When the use of force is unreasonable and routine, a security agency will develop a reputation that nurtures fear, hostility, and non-cooperation among those who are being served. A sixth principle is to avoid the "entitlement mentality," which suggests that security officers and police are entitled to special treatment that other citizens do not receive, such as free food at restaurants and discounts on various purchases. Adherence to the aforementioned six principles will enhance police-community relations, thus fostering cooperation and respect among students and staff.