Skinny/Fat

Here's a thought: given that half this country is overweight, why do clothing stores persist in using starved-to-the-point-of-death models of perfection to sell clothes a large percentage of their customers will never fit into?

Or in other words, why is it so hard to find a pair of Dockers that'll fit my fat backside at Macy's? I call discrimination! 42 and above waists of the world unite!