With a basis in conservation of resources theory, this study investigates the relationship between employees’ sense of job dissatisfaction and their engagement in deviant behaviour, as well as the moderating roles that their exposure to abusive leadership and possession of adaptive humour skills can play in this process. Based on two-way survey data collected from employees in Pakistan, the findings show that employees’ unhappy feelings about their job situations enhance the likelihood that they undertake negative behaviours that can harm their organization, especially when they suffer from abusive leadership or lack adaptive humour skills. The buffering effect of their adaptive humour on the positive relationship between job dissatisfaction and deviant behaviour is also particularly salient in the presence of abusive leadership. JEL Classification: D23, D91, M50