A mad scientist was looking for some brains for a project he was working on and went down to the mad scientist store to get a few ounces of brains for the project. When he got to the brain deli counter he saw Operating Engineers brains were going for $1 an oz, Carpenters brains were $10 an oz and labors brains were $100 an oz.
Confused over the priceing he asked the clerk to explain the priceing. Surely there must be a mix up. How do you explain a Laborers brains priced so high ? The clerk replied, Do you know how many Laborers it takes to get an oz. of brains ?