I guess its rather pointless to try and appeal to someone's sympathy. Because very often one can't sympathize until one is put into the others shoes. The most simplified example will be the service sector. A lot of consumers think that water, food and clothes just pop up from the sky and people who work in the industry are lazy sloths. Yet one who's been there knows it is a living hell. So it is better to address the complaint directly and deconstruct them, imo.