A thorough examination of behavior theory reveals that customers’ intentions regarding theft are the driving force behind their actions – alligning with the theory of planned behavior. As a result, the key determinants of attitudes, subjective norms, and perceived control had been modified through environmentally restructuring the self-checkouts, which can be seen in the newly rendered designs. To assess the effectiveness of this intervention, an empirical evaluation approach was employed. Two distinct role-playing scenarios were enacted: In the first scenario, three participants were assigned the role of ‘customer’ and one participant was assigned the role of ‘stealer’, without the participants being aware of the identity of the stealer. In the second scenario, the roleplay was conducted similarly, but now participants were instructed to actively identify who received the ‘stealer’ card. Naturally, the ‘stealer’ was instructed to attempt avoiding detection. After each roleplay, a discussion between the participants as well as an online survey allowed for evaluating the effectiveness of the intervention in changing participants’ behaviors and perceptions.