The ontogeny of an exhibit commences from fertilization (revelation) which is frequently preceded by an introductory love-play (discussion). The fertilization gives life to the exhibit embryo (idea). Thousands of premature exhibit forms mature (are transformed) through the larval stage (prototypes) until they are mature individuals (exhibits) living (standing) in our exhibitions. But some embryos never come to fruition. This session will be devoted to exhibits that were never constructed because of various obstacles: lack of money, technical troubles, anxieties about political correctness, etc. We will try to help the embryos grow up by producing hormones (advice) that will transform these embryos into colourful butterflies (insightful exhibits). We will try to determine the factors that obstruct their freedom.