Before McDonald's, I bet "don't buy cheeseburgers from a clown" was a pretty hard and fast rule.
@NaveenAlexandra I can't see how that is "white privileged". Many people in India eat lentils and rice every day, and that certainly brings more calories and less obesity than this shit food sold to poor people in USA who -- that's their poverty -- never learned what food is.
Fast food production is terribly insane (and unhealthy) as well. So no, it's not about caloric intake. Poor people know better than the people you assume are poor and mention.