No doubt. But this sounds like a communication problem between two stubborn parties. If someone demands a ridiculous feature and is immune to rational compromis

No doubt. But this sounds like a communication problem between two stubborn parties. If someone demands a ridiculous feature and is immune to rational compromise, then sure .. state your objection, build the feature and send an invoice. In my experience this is rarely the situation. More often its a case of the real issue not being clearly articulated, a lack of will to compromise on behalf of the implementer (as much as the annoying, ignorant client), and a general cynicism from both parties as to the role of the other.