This study aimed to investigate possible relationships between aggressiveness in pupils and the extent to which pupils will seek signs of weakness in teachers who are new to the class. The authors also explored whether gender moderated the relationship between aggressiveness and the perceptual orientation studied. The results reveal connections between aggressiveness and perceptual orientation towards weakness in teachers. The results also support the conclusion that interest in weakness is generally connected to aggressiveness, mainly proactive aggressiveness, regardless of gender.