Take Out Chinese

What is it about take out chinese food that makes people go "oh I want a bite of that, that smells heavenly".Its the worst kind of chinese food I have had but every week there is a day when I get this absurd craving for it. It is greasy, tastes funny after sometime and always gives me an upset stomach. None of that stuff deters me from me running every week to the small grimy hole in the wall in the Harbor.