Kunkel (1997) notes that primary determinants of behavior are formed from past and present experiences. "The most significant difference between a person's environment and rules is that past and present contextual events are the primary determinants of behavior, while rules serve as controlling variables for human activities (Hayes & Brownstein, 1986, as cited in Kunkel 1997)." Based upon our experiences, we form self-rules that govern our behavior. Identify one self-rule that you feel was formed by a previous experience, how new experiences have reshaped it or if it has stayed a true self-rule, and how you use it to guide your everyday actions.