Is me being completely aware of something the linchpin around which we are going to judge if somebody is interacting ethically with me? Because I can see how th

Is me being completely aware of something the linchpin around which we are going to judge if somebody is interacting ethically with me? Because I can see how that would complicate things. Ethically speaking. Also I am 100% certain I am not completely aware of what a clerk knows about my actions when I enter their shop. Unless I pessimistically assume "potentially everything", including my exact identity because I live around there somewhere.