Suppose Bob is wearing a pink shirt and John tells him, in an aggressive tone, to lose the shirt. Bob replies "You can't just tell people me to do like that," and John replies "But in saying so, you're trying to tell ME what to do!" Similar logic seems to apply with regards to all sorts of things - tolerance is another common example ("You need to tolerate my intolerance, Bob!"). A similar case might be John screaming at Bob, and Bob screaming back (presumably just to be heard) that John should stop screaming at him. My question is twofold: first, on a more formal level, this kind of problem seems common, yet I'm not sure what to call it, nor am I sure what exactly the problem is. Can you give me a brief formal analysis of these situations, and perhaps tell me whether this is a frequently-discussed topic? Second, how can Bob effectively respond in such situations? Should he even try, or is he in the wrong?