This paper investigates reasons to argue for social norms regulating our behavior towards artificial agents. By problematizing the assertion that moral agency is, in principle, a necessary prerequisite for any form of moral patiency, reasons are examined which are independent of attributing moral agency to artificial agents, but which speak for morally appropriate behavior towards artificial systems. Suggesting a consequentialist strategy, potential negative impacts of human-machine interactions are analyzed with a focus on factors that support a transfer of behavioral patterns from human-machine interactions to human-human interactions.