Abstract   ”I hate you!” -         An essay about preschool teacher's challenges with extroverted children   Behavior problems among extroverted preschool-aged children have been subject to a lively debate for many years. Research in this area is extensive. Preschool teachers have a lot of information available to them about how extroverted children should be interacted with in practice. However, many important issues remain unanswered. One of these issues concerns the subjective feelings that arise in the preschool teacher in its meeting with an extroverted child. The subjective feelings may give rise to unprofessional behavior and thus becoming an obstacle.                                                                                                                                           This scientific essay concerns two similar situations in which extroverted children are the focus, but where I as a teacher react differently in each situation. My aim has been to highlight the extent to which the teacher's feelings - in this case my own - prevents the preschool teacher to sustain a professional behavior towards extroverted child. In the first situation, I acted instinctively, driven by fear of the children’s and my own safety. In the second situation, I could act more professionally.                       In this paper, I reflect on the reasons why I, as a preschool teacher and educator, reacted differently in the two situations. Furthermore, I reflect on what importance the preschool teacher's knowledge of extroverted children may have for the teacher’s treatment and interactions with these children. In addition, I seek to analyze reactions and perceptions that arise in the two situations.