NO NO NO NO NO!!! the customer is NOT always right! this is one of the most annoying phrases! i work in a pharmacy. if we had that policy, alot of our patients would be dead right now. if you ran a retail store and somebody came up to the counter and said 'i want this but i think it's only worth $x so that's all i'm going to pay for it' would you sell it for the price they demanded? or if you worked in a toy store and somebody bought a toy that needed some assembly and they demanded that you drop everything to put it together for them right now, would you???