Designers are often burdened with creating a design that doesn't require additional interaction by the user. To create something where the user needs to consult

Designers are often burdened with creating a design that doesn't require additional interaction by the user. To create something where the user needs to consult instructions or a help file often deters new users from getting past the initial discovery stage. Even then though there are those "special" users who are beyond help and ignore all rational signs and hints along their path to self destruction. My first job was pumping gas and we had one set of pumps that had a smaller tank than others: it ran out very quickly. So when it was empty we'd put "Out of order" bags over the pump (clearly displayed and labelled) only for people to drive up, remove the bag then complain the pump is dysfunctional.