Look at the average American diet: ice cream, butter, cheese, whole milk, all this fat. People don't realize how much of this stuff you get by the end of the day. High blood pressure is from all this high-fat eating.
Nobody gets a nervous breakdown or a heart attack from selling kerosene to gentle country folk from the back of a tanker in Somerset.
Sometimes I enjoy just photographing the surface because I think it can be as revealing as going to the heart of the matter.