LaHaye argues that most interpersonal conflicts arise not from bad intentions but from temperament clashes: situations where two people with different natural orientations are each behaving reasonably according to their own temperament and producing an outcome that frustrates the other. The most common clashes he describes: Choleric and Phlegmatic: the Choleric's pace is faster than the Phlegmatic's comfort. The Choleric experiences the Phlegmatic as slow, resistant, and unnecessarily cautious. The Phlegmatic experiences the Choleric as reckless, inconsiderate, and unwilling to listen. Both assessments are, from within the temperament perspective, accurate. Sanguine and Melancholy: the Sanguine's need for social interaction and variety conflicts with the Melancholy's need for solitude and depth. The Sanguine experiences the Melancholy as negative, withdrawn, and difficult. The Melancholy experiences the Sanguine as shallow, unreliable, and exhausting. The practical implication is that understanding the other person's type changes the emotional meaning of their behaviour. The Phlegmatic who is not responding to the Choleric's urgency is not being passively aggressive; they are being Phlegmatic. The Melancholy who is criticising the quality of a project is not being negative; they are being Melancholy. LaHaye also argues that temperament-diverse relationships and teams are more productive than temperament-similar ones, provided the members understand the model. The Sanguine's energy and the Melancholy's depth complement each other. The Choleric's decisiveness and the Phlegmatic's stability complement each other.