The complex triadic relationships among consumers, providers, and platforms in the sharing economy have led to increasing conflicts in the interactions between the actors involved, especially when it comes to unethical behavior, such as rule breaking by consumers. This paper examines consumer misbehavior from the perspective of their peers, i.e., service providers. In two studies (an experiment and a survey, combined N = 452), we observe a significant positive effect of ethical climate and a significant negative effect of trust in (...) consumers on providers' strictness of ethical judgments of consumer misbehavior and through this on negative word of mouth. Further, the survey results show that the relationship between the strictness of ethical judgments and negative word of mouth is only significant for providers with low or medium levels of trust in the platform. The results highlight the importance of regulating consumer misbehavior in the sharing economy. (shrink)