Exhibitionism can refer to a wide range of behaviours, ranging from fun with a willing partner, to a crime when done to the unsuspecting and unwilling. As a clinical matter exhibitionism is a sexual paraphilia in which a person (usually a man) obtains sexual pleasure from exposing his or her genitals to strangers, usually in a public place. Prevalence of the condition in the general population is not known, but approximately 30% of sex offenders have exhibitionistic tendencies and it is one of the most common sex offences. Some argue that for people with this paraphilia "it should be a possible to exist happily as an exhibitionist and still stay within the boundaries imposed by our legal systems." While often the belief is that they are harmless, research is indicating that they may progress to more serious crimes. Others note that "exhibitionism...is dangerous in that it can produce traumatic experiences within its victims."
Eric Gill was a print-maker, sculptor, typographer and thinker [pdf]. An artist whose life has had quite a bit of drama associated with it. There is even a new society dedicated to parsing the impacts of his legacy.