This paper assesses the impact of a dissuasive stimulus on the propensity of insurance holders to boost their claims. Our research, following a quasi-experimental design, foresees the sending of a letter in order to enhance, among the insurance holders in position to formulate a claim following a residential thief, their risk perception of the illegal increase. The results show that insurance holders who are members of the control group tend to ask higher amounts but not in significant terms. The results support more the hypothesis of a differential settlement and that these differences would be function of the group membership of the insurance holder, of the amount claimed by the Iatest and of the suspicions of the insurance expert regarding the accuracy of the claim.