Try to change your point of view. Put yourself in someones shoes and feel where the squeeze is. I am not justifying the complainers, but simply giving my imput.
If trying this won't work, say to yourself that these people are doing the best of their abilities, and do not have enough maturity, number one for not researching in what they buy, the policies of return, or if they really needed the arthicle, or simply wanted it. Keep it to yourself without expressing it, turn the case to supervisor, for after all they make the big money, and are paid to take the aggravations, not you. More.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.